Merge pull request #375 from alphagov/dependabot/bundler/rubocop-eq-1.63.4

Update rubocop requirement from = 1.63.3 to = 1.63.4

Author: deborahchua

rubocop-govuk.gemspec

@@ -15,7 +15,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "rake", "~> 13"
 
-  spec.add_dependency "rubocop", "1.63.3"
+  spec.add_dependency "rubocop", "1.63.4"
   spec.add_dependency "rubocop-ast", "1.31.2"
   spec.add_dependency "rubocop-rails", "2.24.1"
   spec.add_dependency "rubocop-rake", "0.6.0"