Update chefstyle requirement from = 0.11.0 to 0.12.0

[dependabot-preview[bot]]

Updates the requirements on chefstyle to permit the latest version.

Changelog

*Sourced from [chefstyle's changelog](https://github.com/chef/chefstyle/blob/master/CHANGELOG.md).* > ## [v0.12.0](https://github.com/chef/chefstyle/tree/v0.12.0) (2019-01-15) > > #### Merged Pull Requests > - WIP: simplify chefstyle [#66](https://github-redirect.dependabot.com/chef/chefstyle/pull/66) ([lamont-granquist](https://github.com/lamont-granquist)) > - rubocop 0.62 engine upgrade [#68](https://github-redirect.dependabot.com/chef/chefstyle/pull/68) ([lamont-granquist](https://github.com/lamont-granquist)) > > ## [v0.11.2](https://github.com/chef/chefstyle/tree/v0.11.2) (2019-01-15) > > #### Merged Pull Requests > - Add boilerplate and expand test to ruby 2.6 [#65](https://github-redirect.dependabot.com/chef/chefstyle/pull/65) ([tas50](https://github.com/tas50)) > - Unpin the bundler dev dep [#67](https://github-redirect.dependabot.com/chef/chefstyle/pull/67) ([tas50](https://github.com/tas50))

Commits

- [`ccb96c2`](https://github.com/chef/chefstyle/commit/ccb96c2e3b4b3632242f8c9cfe0a8b65949e115d) Bump version to 0.12.0 by Chef Expeditor - [`ec1c760`](https://github.com/chef/chefstyle/commit/ec1c760efe3a0fd0c0186bbd063fe2d4ac1b5bb4) Merge pull request [#68](https://github-redirect.dependabot.com/chef/chefstyle/issues/68) from chef/lcg/rubocop-0.62 - [`73506f9`](https://github.com/chef/chefstyle/commit/73506f9b368f00e2bdf9a77365f03f215382d012) also drop ruby 2.2 support - [`740c6bb`](https://github.com/chef/chefstyle/commit/740c6bb705480736537f182e4e00ef42fb78064b) chefstyle myself - [`349f202`](https://github.com/chef/chefstyle/commit/349f202f6d4f9dede7cdfcaf811910bb00fadbbf) Vendor rubocop-0.62.0 upstream configuration. - [`a4fbe2e`](https://github.com/chef/chefstyle/commit/a4fbe2e26fc900fe55b6e9100cfdcd1bb7be336a) new rubucop only has default.yml - [`7622986`](https://github.com/chef/chefstyle/commit/76229867f6b1684b121e840896507a9a7319f774) bump rubocop + chefstyle versions - [`a50697a`](https://github.com/chef/chefstyle/commit/a50697a8ff6b5eee2e737036ec01a8760caebce3) Revert "WIP: simplify chefstyle" - [`27ee8e1`](https://github.com/chef/chefstyle/commit/27ee8e185ac2b5c3bdde4c2ed2c2e0e6f303370d) Bump version to 0.11.3 by Chef Expeditor - [`5af992a`](https://github.com/chef/chefstyle/commit/5af992a84229e93f74eae11d94710e8f57b95f0c) Merge pull request [#66](https://github-redirect.dependabot.com/chef/chefstyle/issues/66) from chef/lcg/simplification - Additional commits viewable in [compare view](https://github.com/chef/chefstyle/compare/v0.11.0...v0.12.0)

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[tas50]

@dependabot ignore this minor version

[dependabot-preview[bot]]

OK, I won't notify you about version 0.12.x again, unless you re-open this PR or update to a 0.12.x release yourself.