Unlock testing inline jobs like normal ones

I had some trouble while running the tests of a project I'm working on. The reason is because I am using this gem and when running the specs with 'testing inline' mode, having configured the sidekiq worker class as unique, it is not reseting the unique option when the job is completed. 

I found that the best solution is calling the server middleware from the client because, when running it as inline, it's not using the server unlock logic.