Apply maintainer suggestions

ee/app/helpers/ee/namespaces_helper.rb

@@ -62,7 +62,7 @@ module EE
     end
 
     def show_minute_limit_banner?(namespace)
-      return false unless ::Gitlab.com? && ::Feature.enabled?(:show_minute_limit_banner)
+      return false unless ::Gitlab.com? && ::Feature.enabled?(:show_minute_limit_banner, namespace.root_ancestor, default_enabled: :yaml)
 
       namespace.root_ancestor.free_plan? && !minute_limit_banner_dismissed?
     end

ee/spec/helpers/ee/namespaces_helper_spec.rb

@@ -229,7 +229,7 @@ RSpec.describe EE::NamespacesHelper do
     context 'on dot com' do
       using RSpec::Parameterized::TableSyntax
 
-      where(:feature_flag_enabled, :free_project, :user_dismissed_banner, :should_show_banner) do
+      where(:feature_flag_enabled, :free_plan, :user_dismissed_banner, :should_show_banner) do
         true  | true  | false | true
         true  | true  | true  | false
         true  | false | false | false
@@ -240,7 +240,7 @@ RSpec.describe EE::NamespacesHelper do
         before do
           allow(Gitlab).to receive(:com?).and_return(true)
           stub_feature_flags(show_minute_limit_banner: feature_flag_enabled)
-          allow(project.root_ancestor).to receive(:free_plan?).and_return(free_project)
+          allow(project.root_ancestor).to receive(:free_plan?).and_return(free_plan)
           allow(helper).to receive(:user_dismissed?).with('minute_limit_banner').and_return(user_dismissed_banner)
         end