Merge pull request #81 from increments/dependabot/bundler/rubocop-tw-1.81.1

Update rubocop requirement from ~> 1.80.1 to ~> 1.81.1

Author: wataru86

Gemfile

@@ -7,6 +7,6 @@ gem 'bundler', '>= 1.16'
 gem 'pry'
 gem 'rake', '~> 13.3'
 gem 'rspec', '~> 3.8'
-gem 'rubocop', '~> 1.80.1'
+gem 'rubocop', '~> 1.81.1'
 gem 'rubocop-rspec', '~> 3.0'
 gem 'simplecov', '!= 0.18.0', '!= 0.18.1', '!= 0.18.2', '!= 0.18.3', '!= 0.18.4', '!= 0.18.5', '!= 0.19.0', '!= 0.19.1', '~> 0.22.0' # rubocop:disable Metrics/LineLength