Errors appearing in log when viewing device, seems related to incorrect temperature display units in HomeKit
I have a HeatStorm wall heater in the Tuya Smart app, and it is set to show Fahrenheit. However, in HomeKit, while it also says the unit is set to Fahrenheit, it is showing 140 degrees as the set point instead of 60F.

The relevant HomeBridge log entries are as follows:

`[10/20/2022, 9:02:04 AM] [homebridge-tuya-platform] This plugin threw an error from the characteristic 'Temperature Display Units': Unhandled error thrown inside read handler for characteristic: This callback function has already been called by someone else; it can only be called one time.. See https://homebridge.io/w/JtMGR for more info.
[10/20/2022, 9:02:04 AM] [homebridge-tuya-platform] Error: This callback function has already been called by someone else; it can only be called one time.
    at TemperatureDisplayUnits.<anonymous> (/homebridge/node_modules/homebridge-tuya-platform/lib/heater_accessory.js:114:11)`

`[10/20/2022, 9:02:04 AM] [homebridge-tuya-platform] This plugin threw an error from the characteristic 'Heating Threshold Temperature': Unhandled error thrown inside read handler for characteristic: This callback function has already been called by someone else; it can only be called one time.. See https://homebridge.io/w/JtMGR for more info.`

`[10/20/2022, 9:02:04 AM] [homebridge-tuya-platform] Error: This callback function has already been called by someone else; it can only be called one time.
    at HeatingThresholdTemperature.<anonymous> (/homebridge/node_modules/homebridge-tuya-platform/lib/heater_accessory.js:114:11)`

`[10/20/2022, 9:02:04 AM] [homebridge-tuya-platform] This plugin threw an error from the characteristic 'Current Temperature': Unhandled error thrown inside read handler for characteristic: This callback function has already been called by someone else; it can only be called one time.. See https://homebridge.io/w/JtMGR for more info.`

`[10/20/2022, 9:02:04 AM] [homebridge-tuya-platform] Error: This callback function has already been called by someone else; it can only be called one time.
    at CurrentTemperature.<anonymous> (/homebridge/node_modules/homebridge-tuya-platform/lib/heater_accessory.js:114:11)`