Update rubocop-performance requirement from ~> 1.22.0 to ~> 1.23.0 (#115

)

Updates the requirements on [rubocop-performance](https://github.com/rubocop/rubocop-performance) to permit the latest version.
- [Release notes](https://github.com/rubocop/rubocop-performance/releases)
- [Changelog](https://github.com/rubocop/rubocop-performance/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-performance@v1.22.0...v1.23.0)

---
updated-dependencies:
- dependency-name: rubocop-performance
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -10,6 +10,6 @@ group :development do
   gem 'rake', '>= 10.0.0'
   gem 'rubocop', '~> 1.68.0'
   gem 'rubocop-minitest', '~> 0.36.0'
-  gem 'rubocop-performance', '~> 1.22.0'
+  gem 'rubocop-performance', '~> 1.23.0'
   gem 'rubocop-rake', '~> 0.6.0'
 end