ci: bump codecov/codecov-action from 3.1.0 to 4.1.0 (#14)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3.1.0 to 4.1.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3.1.0...v4.1.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -104,7 +104,7 @@ jobs:
           path: ./
       - run: ls -R
       - name: Upload coverage report
-        uses: codecov/codecov-action@v3.1.0
+        uses: codecov/codecov-action@v4.1.0
         with:
           files: .coverage.xml
           verbose: true