Raise Eleventy to latest stable and update its plugins

- Raise @11ty/eleventy range to ^3.1.7 (already the installed version)
- Upgrade @11ty/eleventy-plugin-rss to v3 (now ESM-only, which the
  config already uses). This fixes RFC822 dates in rss.xml: posts
  published during BST were previously timestamped an hour late.
- Upgrade @11ty/eleventy-plugin-syntaxhighlight to 5.0.2
- Remove @11ty/eleventy-upgrade-help, which was only needed for the
  v3 migration and is unused

package-lock.json

@@ -9,10 +9,10 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
-        "@11ty/eleventy": "^3.0.0",
+        "@11ty/eleventy": "^3.1.7",
         "@11ty/eleventy-fetch": "^6.0.1",
         "@11ty/eleventy-img": "^7.1.1",
-        "@11ty/eleventy-plugin-syntaxhighlight": "^5.0.0",
+        "@11ty/eleventy-plugin-syntaxhighlight": "^5.0.2",
         "@lewisdale/blog-post-cli": "^1.0.3",
         "@toycode/markdown-it-class": "^1.2.4",
         "autoprefixer": "^10.4.13",
@@ -39,8 +39,7 @@
         "tailwindcss": "^3.4.13"
       },
       "devDependencies": {
-        "@11ty/eleventy-plugin-rss": "^2.0.2",
+        "@11ty/eleventy-plugin-rss": "^3.1.0",
-        "@11ty/eleventy-upgrade-help": "^3.0.1",
         "eleventy-plugin-og-image": "^4.3.0"
       }
     },
@@ -122,19 +121,6 @@
         "normalize-path": "^3.0.0"
       }
     },
-    "node_modules/@11ty/dependency-tree-esm/node_modules/@11ty/eleventy-utils": {
-      "version": "2.0.7",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-2.0.7.tgz",
-      "integrity": "sha512-6QE+duqSQ0GY9rENXYb4iPR4AYGdrFpqnmi59tFp9VrleOl0QSh8VlBr2yd6dlhkdtj7904poZW5PvGr9cMiJQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
     "node_modules/@11ty/dependency-tree-esm/node_modules/dependency-graph": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/dependency-graph/-/dependency-graph-1.0.0.tgz",
@@ -144,19 +130,6 @@
         "node": ">=4"
       }
     },
-    "node_modules/@11ty/dependency-tree/node_modules/@11ty/eleventy-utils": {
-      "version": "2.0.7",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-2.0.7.tgz",
-      "integrity": "sha512-6QE+duqSQ0GY9rENXYb4iPR4AYGdrFpqnmi59tFp9VrleOl0QSh8VlBr2yd6dlhkdtj7904poZW5PvGr9cMiJQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
     "node_modules/@11ty/eleventy": {
       "version": "3.1.7",
       "resolved": "https://registry.npmjs.org/@11ty/eleventy/-/eleventy-3.1.7.tgz",
@@ -238,19 +211,6 @@
         "url": "https://opencollective.com/11ty"
       }
     },
-    "node_modules/@11ty/eleventy-dev-server/node_modules/@11ty/eleventy-utils": {
-      "version": "2.0.7",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-2.0.7.tgz",
-      "integrity": "sha512-6QE+duqSQ0GY9rENXYb4iPR4AYGdrFpqnmi59tFp9VrleOl0QSh8VlBr2yd6dlhkdtj7904poZW5PvGr9cMiJQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
     "node_modules/@11ty/eleventy-fetch": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/@11ty/eleventy-fetch/-/eleventy-fetch-6.0.1.tgz",
@@ -306,19 +266,6 @@
         "url": "https://opencollective.com/11ty"
       }
     },
-    "node_modules/@11ty/eleventy-img/node_modules/@11ty/eleventy-utils": {
-      "version": "2.0.7",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-2.0.7.tgz",
-      "integrity": "sha512-6QE+duqSQ0GY9rENXYb4iPR4AYGdrFpqnmi59tFp9VrleOl0QSh8VlBr2yd6dlhkdtj7904poZW5PvGr9cMiJQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
     "node_modules/@11ty/eleventy-img/node_modules/entities": {
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/entities/-/entities-8.1.0.tgz",
@@ -349,30 +296,17 @@
         "url": "https://opencollective.com/11ty"
       }
     },
-    "node_modules/@11ty/eleventy-plugin-bundle/node_modules/@11ty/eleventy-utils": {
-      "version": "2.0.7",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-2.0.7.tgz",
-      "integrity": "sha512-6QE+duqSQ0GY9rENXYb4iPR4AYGdrFpqnmi59tFp9VrleOl0QSh8VlBr2yd6dlhkdtj7904poZW5PvGr9cMiJQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
     "node_modules/@11ty/eleventy-plugin-rss": {
-      "version": "2.0.2",
+      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-plugin-rss/-/eleventy-plugin-rss-2.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/@11ty/eleventy-plugin-rss/-/eleventy-plugin-rss-3.1.0.tgz",
-      "integrity": "sha512-BiPsNbCvaqAORsg2NA4YqcSvMy/PZiefDU3PtGgwYJQ7A5rkRq/gdod2nu1AzwBG/0c5Qe7D49BxV0SByq9vCw==",
+      "integrity": "sha512-eby7wIYU3XBTAel8qPzbZSEhzNg/WXcAqNULYRqzMBU+gVlx4SL2mUvWDYxkp72KJqefnMMIo2Zz6w09N6S5XQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@11ty/eleventy-utils": "^1.0.3",
+        "@11ty/eleventy-utils": "^2.0.7",
-        "@11ty/posthtml-urls": "1.0.0",
+        "@11ty/posthtml-urls": "^1.0.3",
-        "debug": "^4.3.5",
+        "obug": "^3.0.0",
-        "posthtml": "^0.16.6"
+        "posthtml": "^0.16.7"
       },
       "funding": {
         "type": "opencollective",
@@ -380,33 +314,12 @@
       }
     },
     "node_modules/@11ty/eleventy-plugin-syntaxhighlight": {
-      "version": "5.0.0",
+      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-plugin-syntaxhighlight/-/eleventy-plugin-syntaxhighlight-5.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/@11ty/eleventy-plugin-syntaxhighlight/-/eleventy-plugin-syntaxhighlight-5.0.2.tgz",
-      "integrity": "sha512-y9BUmP1GofmbJgxM1+ky/UpFCpD8JSOeLeKItUs0WApgnrHk9haHziW7lS86lbArX5SiCVo4zTTw9x53gvRCaA==",
+      "integrity": "sha512-T6xVVRDJuHlrFMHbUiZkHjj5o1IlLzZW+1IL9eUsyXFU7rY2ztcYhZew/64vmceFFpQwzuSfxQOXxTJYmKkQ+A==",
       "license": "MIT",
       "dependencies": {
-        "prismjs": "^1.29.0"
+        "prismjs": "^1.30.0"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
-    "node_modules/@11ty/eleventy-upgrade-help": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-upgrade-help/-/eleventy-upgrade-help-3.0.1.tgz",
-      "integrity": "sha512-69CttBBfplByurn5vW7eRiLPywZZZHCH6B68Ib3t3348PaHHG9RysVPRqPQzMrGIEEbXg+0+ICm+R8sAkgjfPQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "fast-glob": "^3.3.2",
-        "kleur": "^4.1.5",
-        "minimist": "^1.2.8",
-        "posthtml-match-helper": "^2.0.2",
-        "semver": "^7.6.3"
-      },
-      "engines": {
-        "node": ">=18"
       },
       "funding": {
         "type": "opencollective",
@@ -414,23 +327,6 @@
       }
     },
     "node_modules/@11ty/eleventy-utils": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-1.0.3.tgz",
-      "integrity": "sha512-nULO91om7vQw4Y/UBjM8i7nJ1xl+/nyK4rImZ41lFxiY2d+XUz7ChAj1CDYFjrLZeu0utAYJTZ45LlcHTkUG4g==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "normalize-path": "^3.0.0"
-      },
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
-    "node_modules/@11ty/eleventy/node_modules/@11ty/eleventy-utils": {
       "version": "2.0.7",
       "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-2.0.7.tgz",
       "integrity": "sha512-6QE+duqSQ0GY9rENXYb4iPR4AYGdrFpqnmi59tFp9VrleOl0QSh8VlBr2yd6dlhkdtj7904poZW5PvGr9cMiJQ==",
@@ -443,21 +339,6 @@
         "url": "https://opencollective.com/11ty"
       }
     },
-    "node_modules/@11ty/eleventy/node_modules/@11ty/posthtml-urls": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/@11ty/posthtml-urls/-/posthtml-urls-1.0.3.tgz",
-      "integrity": "sha512-1YvhnkaNlFnnJic1rBMWmTC2adbuy+JQiBfl1Hecr1Wjjik1pQZmGyk/eC9zKX/FQv52s2Nht1Gi/UwhYqrBeg==",
-      "license": "MIT",
-      "dependencies": {
-        "evaluate-value": "^2.0.0",
-        "http-equiv-refresh": "^2.0.1",
-        "list-to-array": "^1.1.0",
-        "parse-srcset": "^1.0.2"
-      },
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/@11ty/eleventy/node_modules/@sindresorhus/slugify": {
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/@sindresorhus/slugify/-/slugify-2.2.1.tgz",
@@ -547,16 +428,14 @@
       }
     },
     "node_modules/@11ty/posthtml-urls": {
-      "version": "1.0.0",
+      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/@11ty/posthtml-urls/-/posthtml-urls-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/@11ty/posthtml-urls/-/posthtml-urls-1.0.3.tgz",
-      "integrity": "sha512-CcsRdI933x613u7CjM+QGs7iD/m8SaDup3Apohg1+7dybigrEUHc2jGS3mcMgQKvF2+IphqmepD/FrKLlPkPEg==",
+      "integrity": "sha512-1YvhnkaNlFnnJic1rBMWmTC2adbuy+JQiBfl1Hecr1Wjjik1pQZmGyk/eC9zKX/FQv52s2Nht1Gi/UwhYqrBeg==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "evaluate-value": "^2.0.0",
         "http-equiv-refresh": "^2.0.1",
         "list-to-array": "^1.1.0",
-        "object.entries": "^1.1.7",
         "parse-srcset": "^1.0.2"
       },
       "engines": {
@@ -1806,39 +1685,6 @@
         "node": "^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7"
       }
     },
-    "node_modules/call-bind": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.9.tgz",
-      "integrity": "sha512-a/hy+pNsFUTR+Iz8TCJvXudKVLAnz/DyeSUo10I5yvFDQJBFU2s9uqQpoSrJlroHUKoKqzg+epxyP9lqFdzfBQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "call-bind-apply-helpers": "^1.0.2",
-        "es-define-property": "^1.0.1",
-        "get-intrinsic": "^1.3.0",
-        "set-function-length": "^1.2.2"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
-    "node_modules/call-bind-apply-helpers": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
-      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "es-errors": "^1.3.0",
-        "function-bind": "^1.1.2"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      }
-    },
     "node_modules/camelcase-css": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/camelcase-css/-/camelcase-css-2.0.1.tgz",
@@ -2273,42 +2119,6 @@
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       }
     },
-    "node_modules/define-data-property": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/define-data-property/-/define-data-property-1.1.4.tgz",
-      "integrity": "sha512-rBMvIzlpA8v6E+SJZoo++HAYqsLrkg7MSfIinMPFhmkorw7X+dOXVJQs+QT69zGkzMyfDnIMN2Wid1+NbL3T+A==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "es-define-property": "^1.0.0",
-        "es-errors": "^1.3.0",
-        "gopd": "^1.0.1"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
-    "node_modules/define-properties": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.2.1.tgz",
-      "integrity": "sha512-8QmQKqEASLd5nx0U1B1okLElbUuuttJ/AnYmRXbbbGDWh6uS208EjD4Xqq/I9wK7u0v6O08XhTWnt5XtEbR6Dg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "define-data-property": "^1.0.1",
-        "has-property-descriptors": "^1.0.0",
-        "object-keys": "^1.1.1"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
     "node_modules/depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -2415,21 +2225,6 @@
         "url": "https://github.com/fb55/domutils?sponsor=1"
       }
     },
-    "node_modules/dunder-proto": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
-      "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "call-bind-apply-helpers": "^1.0.1",
-        "es-errors": "^1.3.0",
-        "gopd": "^1.2.0"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      }
-    },
     "node_modules/duplexer": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz",
@@ -2467,20 +2262,6 @@
         "@11ty/eleventy": ">=3.0.0"
       }
     },
-    "node_modules/eleventy-plugin-og-image/node_modules/@11ty/eleventy-utils": {
-      "version": "2.0.7",
-      "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-2.0.7.tgz",
-      "integrity": "sha512-6QE+duqSQ0GY9rENXYb4iPR4AYGdrFpqnmi59tFp9VrleOl0QSh8VlBr2yd6dlhkdtj7904poZW5PvGr9cMiJQ==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/11ty"
-      }
-    },
     "node_modules/emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
@@ -2532,39 +2313,6 @@
         "errno": "cli.js"
       }
     },
-    "node_modules/es-define-property": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
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-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.4"
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-    "node_modules/es-errors": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
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-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.4"
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-    "node_modules/es-object-atoms": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.2.tgz",
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-      "dev": true,
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     "node_modules/escalade": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.2.0.tgz",
@@ -2764,45 +2512,6 @@
         "node": "6.* || 8.* || >= 10.*"
       }
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-      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
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-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "call-bind-apply-helpers": "^1.0.2",
-        "es-define-property": "^1.0.1",
-        "es-errors": "^1.3.0",
-        "es-object-atoms": "^1.1.1",
-        "function-bind": "^1.1.2",
-        "get-proto": "^1.0.1",
-        "gopd": "^1.2.0",
-        "has-symbols": "^1.1.0",
-        "hasown": "^2.0.2",
-        "math-intrinsics": "^1.1.0"
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-      "engines": {
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-      "funding": {
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-        "es-object-atoms": "^1.0.0"
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-      "engines": {
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@@ -3768,30 +3428,6 @@
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package.json

@@ -20,10 +20,10 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
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@@ -50,8 +50,7 @@
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   "devDependencies": {
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