Merge pull request #960 from jupyterhub/dependabot/github_actions/codecov/codecov-action-4

build(deps): bump codecov/codecov-action from 3 to 4

Author: consideRatio

.github/workflows/unit-test.yaml

@@ -93,4 +93,4 @@ jobs:
         run: pytest tests
         timeout-minutes: 15
 
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4