Add sidekiq_route back to the whitelisted_routes

lib/gitlab/middleware/readonly_geo.rb

@@ -65,7 +65,7 @@ module Gitlab
       end
 
       def whitelisted_routes
-        logout_route || grack_route || @whitelisted.any? { |path| request.path.include?(path) } || lfs_route
+        logout_route || grack_route || @whitelisted.any? { |path| request.path.include?(path) } || lfs_route || sidekiq_route
       end
 
       def logout_route