Add an ability to customize task options (and data) when calling tube:release()

tube:release() accepts an optional second argument opts, which at this moment can only consist of delay. But often when I release a task back into the queue, I need to adjust other task options, such as priority or ttl. Also, in task data I usually store additional options such as retry strategy, retry count, etc, and it would be great if I can adjust them as well when calling tube:release() (or even better, add an extra field called extra or meta where users can store custom task options?).

Start with the tube:release() entry point and the linked releasing-a-task documentation, then trace how its current opts argument handles delay. Define the supported way to adjust task options and custom task data during release, with behavior that covers the priority, ttl, retry strategy, and retry count examples in the issue.