fix specs

app/controllers/concerns/oauth_applications.rb

 module OauthApplications
   extend ActiveSupport::Concern
-  prepend ::EE::OauthApplications
+  prepend ::EE::Concerns::OauthApplications
 
   included do
     before_action :prepare_scopes, only: [:create, :update]

ee/app/controllers/ee/concerns/oauth_applications.rb

 module EE
+  module Concerns
     module OauthApplications
       extend ActiveSupport::Concern
 
       def log_audit_event
-      AuditEventService.new(current_user,
+        ::AuditEventService.new(current_user,
                                 current_user,
                                 action: :custom,
                                 custom_message: 'OAuth access granted',
@@ -11,4 +12,5 @@ module EE
             .for_user(@application.name).security_event
       end
     end
+  end
 end