Lower version of artifact upload

.github/workflows/deploy-book.yml

@@ -91,26 +91,14 @@ jobs:
       run: ipython kernel install --name "julia-1.11" --user
     - name: Build website
       run: jupyter-book build .
-    - name: Upload pages artifact
-      if: ${{ github.ref == 'refs/heads/main' }}
-      uses: actions/upload-pages-artifact@v4
+    # Upload the book's HTML as an artifact
+    - name: Upload artifact
+      uses: actions/upload-pages-artifact@v2
       with:
-        path: _build/html/
+        path: "_build/html"
 
-  # Deploy pages
-  deploy:
-    if: ${{ github.ref == 'refs/heads/main' }}
-    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
-    permissions:
-      pages: write # to deploy to Pages
-      id-token: write # to verify the deployment originates from an appropriate source
-      actions: read   # to download an artifact uploaded by `actions/upload-pages-artifact@v3`
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4
+    # Deploy the book's HTML to GitHub Pages
+    - name: Deploy to GitHub Pages
+      id: deployment
+      uses: actions/deploy-pages@v2