Update push.yml

Author: themathqueen

.github/workflows/push.yml

@@ -101,7 +101,7 @@ jobs:
        run: JEKYLL_ENV=production bundle exec jekyll build
 
      - name: Upload docs artifact
-       uses: actions/upload-artifact@v4
+       uses: actions/upload-pages-artifact@v1
        with:
          path: docs/_site