Update chefstyle requirement from 2.1.3 to 2.2.0

Updates the requirements on [chefstyle](https://github.com/chef/chefstyle) to permit the latest version.
- [Release notes](https://github.com/chef/chefstyle/releases)
- [Changelog](https://github.com/chef/chefstyle/blob/main/CHANGELOG.md)
- [Commits](chef/chefstyle@v2.1.3...v2.2.0)

---
updated-dependencies:
- dependency-name: chefstyle
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -10,7 +10,7 @@ if Gem.ruby_version.to_s.start_with?("2.5")
 end
 
 group :development do
-  gem "chefstyle", "2.1.3"
+  gem "chefstyle", "2.2.0"
   gem "m"
   gem "bundler"
   gem "byebug"