Update rubocop-rspec requirement from ~> 2.29 to ~> 3.0

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@v2.29.0...v3.0.1)

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

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

Gemfile

@@ -6,7 +6,7 @@ gem "rubocop", "1.64.1"
 gem "rubocop-packaging", "0.5.2"
 gem "rubocop-performance", "1.21.0"
 gem "rubocop-rake", "0.6.0"
-gem "rubocop-rspec", "~> 2.29"
+gem "rubocop-rspec", "~> 3.0"
 gem "rubocop-sorbet"
 
 group :test, :development do