Update dependency rdoc to '~> 7.1.0'

Author: renovate[bot]

Gemfile

@@ -16,5 +16,5 @@ end
 group :development do
   gem 'pry', '~> 0.15.2'
   gem 'pry-byebug', '~> 3.11.0'
-  gem 'rdoc', '~> 7.0.0'
+  gem 'rdoc', '~> 7.1.0'
 end