Update version number

Author: admacpherson

.github/workflows/pages-deploy.yml

@@ -23,7 +23,7 @@ jobs:
 
       # Deploy to GitHub Pages
       - name: Deploy to GitHub Pages
-        uses: peaceiris/actions-gh-pages@v6
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./