Bump codecov from 0.4.3 to 0.5.0

Bumps [codecov](https://github.com/codecov/codecov-ruby) from 0.4.3 to 0.5.0.
- [Release notes](https://github.com/codecov/codecov-ruby/releases)
- [Changelog](https://github.com/codecov/codecov-ruby/blob/master/CHANGELOG.md)
- [Commits](codecov/codecov-ruby@v0.4.3...v0.5.0)

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

Gemfile.lock

@@ -82,7 +82,7 @@ GEM
       ci_reporter (~> 2.0)
       test-unit (>= 2.5.5, < 4.0)
     climate_control (0.2.0)
-    codecov (0.4.3)
+    codecov (0.5.0)
       simplecov (>= 0.15, < 0.22)
     coderay (1.1.2)
     coffee-rails (5.0.0)