Fix state class for Overkiz water consumption (home-assistant#154164)

Author: Yvan13120

homeassistant/components/overkiz/sensor.py

@@ -120,7 +120,7 @@ class OverkizSensorDescription(SensorEntityDescription):
         icon="mdi:water",
         native_unit_of_measurement=UnitOfVolume.LITERS,
         device_class=SensorDeviceClass.WATER,
-        state_class=SensorStateClass.TOTAL_INCREASING,
+        state_class=SensorStateClass.TOTAL,
     ),
     OverkizSensorDescription(
         key=OverkizState.IO_OUTLET_ENGINE,