Fix scaling of SolaX X3 G4-Pro Inverter Temperature

For newer firmware versions it seems the 0.1 scaling is no longer required.

This is an undocumented register so hard to know what is going on. However it requires the scaling on older firmware versions but not on a newer one, so guessing this is protocol version related.

Author: TCWORLD

custom_components/solax_modbus/plugin_solax.py

@@ -6302,12 +6302,26 @@ def value_function_battery_voltage_cell_difference(initval: int, descr: Any, dat
         device_class=SensorDeviceClass.TEMPERATURE,
         state_class=SensorStateClass.MEASUREMENT,
         register=0x8,
+        modbus_max=99,
         register_type=REG_INPUT,
         scale=0.1,
         register_data_type=REGISTER_S16,
         allowedtypes=AC | HYBRID | GEN5 | GEN6 | X3,
         entity_category=EntityCategory.DIAGNOSTIC,
     ),
+    SolaXModbusSensorEntityDescription(
+        name="Inverter Temperature",
+        key="inverter_temperature",
+        native_unit_of_measurement=UnitOfTemperature.CELSIUS,
+        device_class=SensorDeviceClass.TEMPERATURE,
+        state_class=SensorStateClass.MEASUREMENT,
+        register=0x8,
+        modbus_min=100,  # Technically undocumented, but seems to work fine.
+        register_type=REG_INPUT,
+        register_data_type=REGISTER_S16,
+        allowedtypes=AC | HYBRID | GEN5 | GEN6 | X3,
+        entity_category=EntityCategory.DIAGNOSTIC,
+    ),
     SolaXModbusSensorEntityDescription(
         name="Run Mode",
         key="run_mode",