Bump cookstyle from 7.15.0 to 7.15.1

Bump cookstyle from 7.15.0 to 7.15.1

Bumps [cookstyle](https://github.com/chef/cookstyle) from 7.15.0 to 7.15.1.
- [Release notes](https://github.com/chef/cookstyle/releases)
- [Changelog](https://github.com/chef/cookstyle/blob/master/CHANGELOG.md)
- [Commits](https://github.com/chef/cookstyle/compare/v7.15.0...v7.15.1)

---
updated-dependencies:
- dependency-name: cookstyle
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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