Update rspec-rails requirement from ~> 6.1.2 to ~> 7.0.1 (#151)

Updates the requirements on [rspec-rails](https://github.com/rspec/rspec-rails) to permit the latest version.
- [Changelog](https://github.com/rspec/rspec-rails/blob/main/Changelog.md)
- [Commits](rspec/rspec-rails@v6.1.2...v7.0.1)

---
updated-dependencies:
- dependency-name: rspec-rails
  dependency-type: direct:development
...

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

cloudflare-rails.gemspec

@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rack-attack', '~> 6.7.0'
   spec.add_development_dependency 'rake', '~> 13.2.1'
   spec.add_development_dependency 'rspec', '~> 3.13.0'
-  spec.add_development_dependency 'rspec-rails', '~> 6.1.2'
+  spec.add_development_dependency 'rspec-rails', '~> 7.0.1'
   spec.add_development_dependency 'rubocop', '~> 1.65.0'
   spec.add_development_dependency 'rubocop-performance', '~> 1.21.0'
   spec.add_development_dependency 'rubocop-rails', '~> 2.25.0'