Vacuum's HomeKit service doesn't go off when vacuum finishes work. 
After finish work my vacuum returns to the dock, but plugging shows it still working.
Model=viomi.vacuum.v7 

extract from log. 

[9/24/2022, 8:07:54 AM] [homebridge-xiaomi-roborock-vacuum] This plugin threw an error from the characteristic 'On': Unhandled error thrown inside write handler for characteristic: Call to device timed out. See https://homebridge.io/w/JtMGR for more info.
