Move item to end of queue

[jlelse]

It would be awesome to have a way to move an item to the end of the queue instead of dequeue and enqueue again. My use case is the following: I use a queue to sequentially send requests and retry failed ones for a couple of times after a certain time threshold. I always peek (block) the first item and after it was processed, dequeue it. When it failed and didn't fail for more than 3 times, I enqueue it again.