Bump codecov/codecov-action from 2.0.1 to 2.1.0 (#59)

* Bump codecov/codecov-action from 2.0.1 to 2.1.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2.0.1 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](https://github.com/codecov/codecov-action/compare/v2.0.1...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>

* Update .github/workflows/tests.yml

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index da00409..c28674e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -45,4 +45,4 @@
 
     - name: Upload coverage to Codecov
       if: ${{ matrix.update-coverage }}
-      uses: codecov/codecov-action@v2.0.1
+      uses: codecov/codecov-action@f32b3a3741e1053eb607407145bc9619351dc93b #v2.1.0