WeatherEntity now supports temperature unit conversion following a similar pattern
as the unit conversion supported by NumberEntity and SensorEntity.
Precipitation, pressure, temperature, visibility and wind speed are automatically converted according to the unit system configured by the users. In addition, users can override units for specific weather entities.
To make this possible, custom component integrations should be updated to override
properties native_precipitation_unit, native_pressure, native_pressure_unit,
native_temperature, native_temperature_unit,native_visibility, native_visibility_unit,
native_wind_speed and native_wind_speed_unit, instead of precipitation_unit,
pressure, pressure_unit, temperature, temperature_unit,visibility, visibility_unit,
wind_speed and wind_speed_unit.
The same renaming has been done for the corresponding _attr_* attributes as well
as for members of the Forecast typed dict
In Home Assistant Core 2023.1, overriding precipitation_unit,
pressure, pressure_unit, temperature, temperature_unit,visibility, visibility_unit,
wind_speed, wind_speed_unit, setting _attr_precipitation_unit,
_attr_pressure, _attr_pressure_unit, _attr_temperature, _attr_temperature_unit,
_attr_visibility, _attr_visibility_unit, _attr_wind_speed, _attr_wind_speed_unit and
setting precipitation, pressure, temperature, templow, wind_speed on instances of
Forecast is no longer supported.