build(deps): bump codecov from 0.2.2 to 0.2.3 in /Library/Homebrew

Bumps [codecov](https://github.com/codecov/codecov-ruby) from 0.2.2 to 0.2.3.
- [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/v0.2.2...v0.2.3

)

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

Library/Homebrew/Gemfile.lock

@@ -10,7 +10,7 @@ GEM
     ast (2.4.1)
     bindata (2.4.8)
     byebug (11.1.3)
-    codecov (0.2.2)
+    codecov (0.2.3)
       colorize
       json
       simplecov