ci: bump codecov/codecov-action from 2.0.2 to 2.0.3 (#402)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](codecov/codecov-action@v2.0.2...v2.0.3)

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

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

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

.github/workflows/test.yml

@@ -54,4 +54,4 @@ jobs:
           name: coverage-${{ matrix.os }}
           path: coverage
 
-      - uses: codecov/codecov-action@v2.0.2
+      - uses: codecov/codecov-action@v2.0.3