Fix modulation_level assert

Author: bouwew

tests/test_smile.py

@@ -3327,7 +3327,7 @@ async def test_connect_anna_elga_2_cooling(self):
                 "sensors": {
                     "water_temperature": 22.8,
                     "intended_boiler_temperature": 0.0,
-                    "modulation_level": 0.0,
+                    "modulation_level": 100,
                     "return_temperature": 23.4,
                     "water_pressure": 0.5,
                     "outdoor_air_temperature": 30.0,