Bump codecov/codecov-action from 2.0.3 to 2.1.0 (GH-11)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2.0.3 to 2.1.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](codecov/codecov-action@v2.0.3...v2.1.0)

---
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/ci.yaml

@@ -54,7 +54,7 @@ jobs:
         if: >-
           (github.event_name == 'push' && github.repository == 'ichard26/blackbench')
               || (github.event.pull_request.base.repo.full_name == 'ichard26/blackbench')
-        uses: codecov/codecov-action@v2.0.3
+        uses: codecov/codecov-action@v2.1.0
         env:
           OS: ${{ matrix.os }}
           PYTHON: ${{ matrix.python }}