rubocop: ignore Gemspec/RequiredRubyVersion

.rubocop.yml

@@ -65,3 +65,6 @@ Style/Documentation:
 Style/CommentedKeyword:
   Exclude:
     - 'spec/fixtures/example_nesting.rb'
+
+Gemspec/RequiredRubyVersion:
+  Enabled: false

.rubocop_todo.yml

@@ -6,13 +6,6 @@
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 1
-# Configuration parameters: Include.
-# Include: **/*.gemspec
-Gemspec/RequiredRubyVersion:
-  Exclude:
-    - 'pry.gemspec'
-
 # Offense count: 88
 Metrics/AbcSize:
   Max: 48