Move groups settings helper to EE and update spec

ee/app/helpers/groups/settings_helper.rb → ee/app/helpers/ee/groups/settings_helper.rb

 # frozen_string_literal: true
 
-module Groups
+module EE::Groups
   module SettingsHelper
     def delayed_project_removal_help_text
       html_escape(delayed_project_removal_i18n_string) % {

ee/spec/helpers/groups/settings_helper_spec.rb → ee/spec/helpers/ee/groups/settings_helper_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Groups::SettingsHelper do
+RSpec.describe EE::Groups::SettingsHelper do
   include AdminModeHelper
 
   let_it_be(:user) { create(:user) }