Bump codecov/codecov-action from 5.4.3 to 5.5.1 (TGSAI#695)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.4.3 to 5.5.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v5.4.3...v5.5.1)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: 5.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -129,6 +129,6 @@ jobs:
           nox --session=coverage -- xml
 
       - name: Upload coverage report
-        uses: codecov/codecov-action@v5.4.3
+        uses: codecov/codecov-action@v5.5.1
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}