I'm sorry, this title can look a little disturbing. But I'm not switching jobs. I do want to make a point though: if you aren't learning something on your current job, you should switch.
And it doesn't have to be super radical like quitting: it can be as simple as taking on something extra, setting a couple of challenging goals or having a chat with your manager.
But, and I really believe this, if you have tried all of these things and still don't see any signs of growth or learning, you absolutely should be moving on.