build(deps): bump codecov/codecov-action from 5.4.0 to 5.4.2

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.4.0 to 5.4.2.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v5.4.0...v5.4.2)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: 5.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -64,7 +64,7 @@ jobs:
         run: pytest
 
       - name: Upload coverage to Codecov
-        uses: codecov/[email protected].0
+        uses: codecov/[email protected].2
         with:
           env_vars: OS,PYTHON
           flags: unittests