Update rubocop requirement from ~> 1.64.1 to ~> 1.65.1 (#129)

Updates the requirements on [rubocop](https://github.com/rubocop/rubocop) to permit the latest version.

Updates `rubocop` to 1.65.1
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.64.1...v1.65.1)

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

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

granite.gemspec

@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rspec-its', '~> 1.2 '
   s.add_development_dependency 'rspec_junit_formatter', '~> 0.2'
   s.add_development_dependency 'rspec-rails', '~> 6.0'
-  s.add_development_dependency 'rubocop', '~> 1.64.1'
+  s.add_development_dependency 'rubocop', '~> 1.65.1'
   s.add_development_dependency 'rubocop-rails', '~> 2.25.0'
   s.add_development_dependency 'rubocop-rspec', '~> 3.0.1'
   s.add_development_dependency 'rubocop-rspec_rails', '~> 2.30'