Update rubocop requirement from ~> 1.65.0 to ~> 1.66.0 (#70)

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@v1.65.0...v1.66.0)

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

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

Author: dependabot[bot]

Gemfile

@@ -17,7 +17,7 @@ group :development_test do
 end
 
 group :development_lint do
-  gem 'rubocop', '~> 1.65.0', require: false
+  gem 'rubocop', '~> 1.66.0', require: false
 end
 
 group :development_local do