0ca94e5443
This rule was added in rubocop-rails 2.33. At first, I wasn't very fond of this rule. It made the code less readable even if it improved performace in some cases. Then I realized that in the `Admin::MachineLearning::SettingComponent` we were using `find_by` when we should be using `find_by!` instead, and we detected that thanks to this rule. So, only for that reason, I'm adding this rule, but I'm fine if we remove it.