Merge pull request codecov#148 from codecov/v4-action

feat: upgrade to v4

Author: thomasrockhu-codecov

.github/workflows/ci.yml

@@ -15,4 +15,6 @@ jobs:
  - name: Run tests and collect coverage
  run: pytest --cov app
  - name: Upload coverage to Codecov
- uses: codecov/codecov-action@v3
+ uses: codecov/codecov-action@v4.0.0-beta.2
+ env:
+ CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}