[BUG] If a timeout assert loop using mcu_millis is called inside an ISR the program stalls

[Paciente8159]

Describe the bug
If a timeout assert using mcu_millis is called inside and ISR the program stalls. An example of this is calling an communication function that has a timeout check, inside the ISR. The millis are no longer updated and if the external device does not respond this leads to a stall.

What is your hardware
All

What was the GCode running
N/A

Screenshots
N/A

Additional context
Timeout asserting needs to be changed to an ISR independent strategy.