⬆️ Bump codecov/codecov-action from 4.5.0 to 4.6.0 (#261)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.5.0...v4.6.0)

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

.github/workflows/tests.yml

@@ -49,7 +49,7 @@ jobs:
 
     - name: Upload to Codecov
       if: matrix.os == 'ubuntu-latest' && matrix.python-version == 3.11 && github.repository == 'QuantEcon/quantecon-book-theme' && github.event_name == 'pull_request'
-      uses: codecov/codecov-action@v4.5.0
+      uses: codecov/codecov-action@v4.6.0
       with:
         name: ebp-qbt-pytests-py3.7
         flags: pytests