Fix Spring reloading AdminMode::Client

Prefix modules and classes with double colon

lib/gitlab/sidekiq_middleware/admin_mode/client.rb

@@ -8,7 +8,7 @@ module Gitlab
       # If enabled then it injects a job field that persists through the job execution
       class Client
         def call(_worker_class, job, _queue, _redis_pool)
-          return yield unless Feature.enabled?(:user_mode_in_session)
+          return yield unless ::Feature.enabled?(:user_mode_in_session)
 
           # Admin mode enabled in the original request or in a nested sidekiq job
           admin_mode_user_id = find_admin_user_id
@@ -16,7 +16,7 @@ module Gitlab
           if admin_mode_user_id
             job['admin_mode_user_id'] ||= admin_mode_user_id
 
-            Gitlab::AppLogger.debug("AdminMode::Client injected admin mode for job: #{job.inspect}")
+            ::Gitlab::AppLogger.debug("AdminMode::Client injected admin mode for job: #{job.inspect}")
           end
 
           yield
@@ -25,8 +25,8 @@ module Gitlab
         private
 
         def find_admin_user_id
-          Gitlab::Auth::CurrentUserMode.current_admin&.id ||
-            Gitlab::Auth::CurrentUserMode.bypass_session_admin_id
+          ::Gitlab::Auth::CurrentUserMode.current_admin&.id ||
+            ::Gitlab::Auth::CurrentUserMode.bypass_session_admin_id
         end
       end
     end