Update CHANGELOG

Author: bouwew

CHANGELOG.md

@@ -5,6 +5,7 @@
 - Repair coverage/fix testing - #294
 - Correct non-unique device names in adam_jip userdata
 - Add domestic_hot_water_setpoint data to anna_heatpump_heating userdata, update relevant test-cases
+- Raise an error when providing the wrong type of target temperature input to the climate.set_temperature service
 
 ## V0.31.6: Fix domestic_hot_water_setpoint-related bug for Anna + Elga