build(deps): bump codecov from 0.2.6 to 0.2.7 in /Library/Homebrew

Bumps [codecov](https://github.com/codecov/codecov-ruby) from 0.2.6 to 0.2.7.
- [Release notes](https://github.com/codecov/codecov-ruby/releases)
- [Changelog](https://github.com/codecov/codecov-ruby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-ruby/compare/v0.2.6...v0.2.7

)

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