Update rubocop-rspec requirement from 2.23.2 to 2.24.1 (#362)

Updates the requirements on [rubocop-rspec](https://github.com/rubocop/rubocop-rspec) to permit the latest version.
- [Release notes](https://github.com/rubocop/rubocop-rspec/releases)
- [Changelog](https://github.com/rubocop/rubocop-rspec/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rspec@v2.23.2...v2.24.1)

---
updated-dependencies:
- dependency-name: rubocop-rspec
  dependency-type: direct:production
...

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

Gemfile

@@ -8,4 +8,4 @@ gem 'coveralls', require: false
 gem 'rubocop', '1.56.2', require: false
 gem 'rubocop-performance', '1.19.1', require: false
 gem 'rubocop-rake', '0.6.0', require: false
-gem 'rubocop-rspec', '2.23.2', require: false
+gem 'rubocop-rspec', '2.24.1', require: false