Bump codecov/codecov-action

Bumps the workflow group with 1 update in the /.github/actions/test directory: [codecov/codecov-action](https://github.com/codecov/codecov-action).


Updates `codecov/codecov-action` from 5 to 6
- [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...v6)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: workflow
...

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

Author: dependabot[bot]

.github/actions/test/action.yml

@@ -37,7 +37,7 @@ runs:
       run: |
         Invoke-Build -Task TestAll
     - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v5
+      uses: codecov/codecov-action@v6
       if: runner.os == 'Linux' && inputs.codecov_token != ''
       with:
         files: ./coverage.cobertura.xml