github-actions: bump codecov/codecov-action from 2.1.0 to 3

github-actions: bump codecov/codecov-action from 2.1.0 to 3

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2.1.0 to 3.
- [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/f32b3a3741e1053eb607407145bc9619351dc93b...e3c560433a6cc60aec8812599b7844a7b4fa0d71)

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

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