Bump codecov from 2.0.5 to 2.0.15
Bump codecov from 2.0.5 to 2.0.15

Bumps [codecov](https://github.com/codecov/codecov-python) from 2.0.5 to 2.0.15.
- [Release notes](https://github.com/codecov/codecov-python/releases)
- [Changelog](https://github.com/codecov/codecov-python/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-python/compare/v2.0.5...v2.0.15)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
plus3it/watchmaker,plus3it/watchmaker