Avatto WT20R: removed utf8 character

custom_components/tuya_local/devices/avatto_wt20r.yaml

@@ -30,7 +30,7 @@ entities:
             value: program
           - dps_val: manual
             value: manual
-     #target set-temperature in °C
+     #target set-temperature in C
       - id: 3
         name: temp_set
         type: integer
@@ -38,7 +38,7 @@ entities:
         range:
           min: 5
           max: 45
-     #current temperature in °C
+     #current temperature in C
       - id: 24
         type: integer
         name: current_temp