Bump codecov/codecov-action from 3 to 4 (#1477)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [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...v4)

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

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

.github/workflows/ci-tests.yml

@@ -193,7 +193,7 @@ jobs:
           CI_MODIN_ENGINES: ray
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
 
       - name: Check Docstrings
         if: ${{ matrix.os != 'windows-latest' && matrix.python-version == '3.11' && matrix.pandas-version == '2.0.3' }}