Use deploy v4

Author: GearsDatapacks

.github/workflows/publish.yml

@@ -36,7 +36,7 @@ jobs:
           echo "gearsco.de" > ./priv/CNAME
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           publish_dir: ./priv
           github_token: ${{ secrets.GITHUB_TOKEN }}