chore(deps-dev): bump codecov

Bumps [codecov](https://github.com/codecov/codecov-node) from 3.5.0 to 3.7.1.
- [Release notes](https://github.com/codecov/codecov-node/releases)
- [Changelog](https://github.com/codecov/codecov-node/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-node/commits/v3.7.1)

---
updated-dependencies:
- dependency-name: codecov
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>