Update push.yml

Author: themathqueen

.github/workflows/push.yml

@@ -27,7 +27,7 @@ jobs:
    name: Build project
    steps:
      - name: Checkout project
-       uses: actions/checkout@v2
+       uses: actions/checkout@v3
        with:
          fetch-depth: 0
 
@@ -101,7 +101,7 @@ jobs:
        run: JEKYLL_ENV=production bundle exec jekyll build
 
      - name: Upload docs artifact
-       uses: actions/upload-pages-artifact@v1
+       uses: actions/upload-artifact@v4
        with:
          path: docs/_site