Update dependency rubocop to v1.81.1 (#100)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Gemfile

@@ -14,7 +14,7 @@ group :test do
   gem 'puppetlabs_spec_helper'
   gem 'metadata-json-lint'
   gem 'rspec-puppet-facts'
-  gem 'rubocop', '1.81.0'
+  gem 'rubocop', '1.81.1'
   gem 'puppet-lint'
 end