Fix errant indentation and rubocop

ee/spec/models/user_spec.rb

@@ -1287,7 +1287,6 @@ RSpec.describe User do
   end
 
   describe '#gitlab_bot?' do
-
     subject { user.gitlab_bot? }
 
     let_it_be(:gitlab_group) { create(:group, name: 'gitlab-com') }