Update deploy job

Switch to official GH Pages Action

https://github.com/marketplace/actions/deploy-github-pages-site

.github/workflows/deploy.yml

@@ -29,24 +29,27 @@ jobs:
       - name: Upload production-ready build files
         uses: actions/upload-artifact@v4
         with:
-          name: production-files
+          name: github-pages
           path: ./dist
 
   deploy:
     name: Deploy
+    # Add a dependency to the build job
     needs: build
-    runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/main'
 
-    steps:
-      - name: Download artifact
-        uses: actions/download-artifact@v4
-        with:
-          name: production-files
-          path: ./dist
+    # 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
 
+    # Deploy to the github-pages environment
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    # Specify runner + deployment step
+    runs-on: ubuntu-latest
+    steps:
       - name: Deploy to GitHub Pages
-        uses: peaceiris/actions-gh-pages@v3
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: ./dist
+        id: deployment
+        uses: actions/deploy-pages@v4 # or specific "vX.X.X" version tag for this action