Update rubocop requirement from ~> 0.24.1 to ~> 1.75.5

Updates the requirements on [rubocop](https://github.com/rubocop/rubocop) to permit the latest version.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v0.24.1...v1.75.5)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-version: 1.75.5
  dependency-type: direct:development
...

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

Author: dependabot[bot]

packaging.gemspec

@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
   gem.required_ruby_version = '>= 2.0.0'
 
   gem.add_development_dependency('rspec', ['~> 2.14.1'])
-  gem.add_development_dependency('rubocop', ['~> 0.24.1'])
+  gem.add_development_dependency('rubocop', '~> 1.75.5')
   gem.add_development_dependency('pry-byebug')
   gem.add_runtime_dependency('rake', ['>= 12.3'])
   gem.add_runtime_dependency('artifactory', ['~> 3'])