fix never running timingOut due to weak self capture

[davidkessler-ch]

Refer to: this issue

Fixed [the timeOut callback function never running] by removing the weak self capture in the timingOut function. Not sure why self is lost in the first place, but retain cycles are not a problem since they are only temporary anyways with asyncAfter(...) { }

[mendimr]

@nuclearace Any news when this PR will be merged with main?