When `timers.refresh()` is called inside a callback, the timer would
incorrectly end up unrefed and thus not keep the event loop alive.
PR-URL: https://github.com/nodejs/node/pull/26721
Fixes: https://github.com/nodejs/node/issues/26642
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Weijia Wang <starkwang@126.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
