Merge pull request #299 from cmu-delphi/ndefries/bump-python-action-version

Bump setup-python action version to use new node

Author: nmdefries

.github/workflows/ci.yaml

@@ -56,7 +56,7 @@ jobs:
           docker push ${{ steps.tagname.outputs.repo }}:${{ steps.tagname.outputs.tag }}
       - name: Set up Python 3.8
         if: startsWith(github.ref, 'refs/heads/main')
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: 3.8
       - name: Extract version