Run `bundle` after bumping the version in 04f9915

Hey @jlindsey, small pull request to fix the version number recorded in `Gemfile.lock` after the version was bumped in 04f9915 _(as mentioned [here](https://github.com/jlindsey/semantic/commit/04f99157ebad4d2494000c9f6fbc5c9a1be50097#commitcomment-3878765))_ ... Thanks!