Update rubocop-performance requirement from ~> 1.21.0 to ~> 1.22.1

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@v1.21.0...v1.22.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

cloudflare-rails.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rspec', '~> 3.13.0'
   spec.add_development_dependency 'rspec-rails', '~> 7.0.1'
   spec.add_development_dependency 'rubocop', '~> 1.66.1'
-  spec.add_development_dependency 'rubocop-performance', '~> 1.21.0'
+  spec.add_development_dependency 'rubocop-performance', '~> 1.22.1'
   spec.add_development_dependency 'rubocop-rails', '~> 2.26.1'
   spec.add_development_dependency 'rubocop-rspec', '~> 3.0.1'
   spec.add_development_dependency 'webmock', '~> 3.23.1'