silence deprecation message for dynamic controller and actions on Action View test

Follow up to #23980.

actionview/test/template/url_helper_test.rb

@@ -655,7 +655,9 @@ class UrlHelperController < ActionController::Base
         to: 'url_helper_controller_test/url_helper#show_named_route',
         as: :show_named_route
 
-      get "/:controller(/:action(/:id))"
+      ActiveSupport::Deprecation.silence do
+        get "/:controller(/:action(/:id))"
+      end
 
       get 'url_helper_controller_test/url_helper/normalize_recall_params',
         to: UrlHelperController.action(:normalize_recall),