fix (arlec_thermostat_smartplug): typo in class name

custom_components/tuya_local/devices/arlec_thermostat_smartplug.yaml

@@ -203,7 +203,7 @@ entities:
             value: F
   - entity: number
     translation_key: temperature_calibration
-    class: termperature_delta
+    class: temperature_delta
     category: config
     dps:
       - id: 30