Add feature categories to controllers beginning with C

app/controllers/confirmations_controller.rb

@@ -3,6 +3,8 @@
 class ConfirmationsController < Devise::ConfirmationsController
   include AcceptsPendingInvitations
 
+  feature_category :users, only: [:new, :show, :create, :almost_there]
+
   def almost_there
     flash[:notice] = nil
     render layout: "devise_empty"

spec/controllers/every_controller_spec.rb

@@ -23,7 +23,7 @@ RSpec.describe "Every controller" do
     let_it_be(:routes_without_category) do
       controller_actions.map do |controller, action|
         next if controller.feature_category_for_action(action)
-        next unless controller.to_s.start_with?('B')
+        next unless controller.to_s.start_with?('B', 'C')
 
         "#{controller}##{action}"
       end.compact