Try building inside the github action

.gitea/workflows/build-and-copy.yaml

@@ -0,0 +1,23 @@
+name: Build and copy to prod
+on:
+  push:
+
+jobs:
+  build-and-copy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20.x
+      - name: Install dependencies 📦
+        run: yarn install --frozen-lockfile
+      - name: Build eleventy
+        run: yarn build
+        env:
+          NODE_ENV: production
+          OMNIVORE_API_KEY: ${{ secrets.OMNIVORE_API_KEY }}
+
+          

.gitea/workflows/update.yaml

@@ -1,6 +1,5 @@
 name: Build on push
 on:
-  push:
   schedule:
     - cron: '@hourly'