Specify branch for GitHub Pages deployment

Add branch specification for GitHub Pages deployment

Author: cunyu1943

.github/workflows/auto-deploy.yml

@@ -63,4 +63,6 @@ jobs:
     steps:
       - name: 🎉 Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v4
+        with:
+          branch: gh-pages