Move JWT to Gitlab::JWT

app/controllers/jwt_controller.rb

@@ -3,7 +3,7 @@ class JwtController < ApplicationController
   skip_before_action :verify_authenticity_token
 
   SERVICES = {
-    'container_registry' => JWT::ContainerRegistryAuthenticationService,
+    'container_registry' => ::Gitlab::JWT::ContainerRegistryAuthenticationService,
   }
 
   def auth

app/services/jwt/container_registry_authentication_service.rb

-module JWT
+module Gitlab
+  module JWT
     class ContainerRegistryAuthenticationService < BaseService
       def execute
         if params[:offline_token]
@@ -66,4 +67,5 @@ module JWT
         Gitlab.config.registry
       end
     end
+  end
 end