Bump codecov/codecov-action from 5.1.1 to 5.3.1

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.1.1 to 5.3.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v5.1.1...v5.3.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/push.yml

@@ -48,7 +48,7 @@ jobs:
       run: |
         python3 -m pytest --cov=oaatoperator --cov-append --cov-report=term --cov-report=xml:cov.xml .
     - name: Upload Coverage
-      uses: codecov/codecov-action@v5.1.1
+      uses: codecov/codecov-action@v5.3.1
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         fail_ci_if_error: false