Add force_orphan to GitHub Pages deployment

Author: mmaxence

.github/workflows/deploy.yml

@@ -32,4 +32,5 @@ jobs:
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./out
+        force_orphan: true
         # cname: design.buzzvil.com  # Optional: if you have a custom domain