chore: Enable the new Rubocop rules (#7122)

fixes: https://linear.app/chatwoot/issue/CW-1574/renable-the-disabled-rubocop-rules

spec/actions/contact_identify_action_spec.rb

@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-describe ::ContactIdentifyAction do
+describe ContactIdentifyAction do
   subject(:contact_identify) { described_class.new(contact: contact, params: params).perform }
 
   let!(:account) { create(:account) }

spec/actions/contact_merge_action_spec.rb

@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-describe ::ContactMergeAction do
+describe ContactMergeAction do
   subject(:contact_merge) { described_class.new(account: account, base_contact: base_contact, mergee_contact: mergee_contact).perform }
 
   let!(:account) { create(:account) }