JSON: fix: max_value for call_fan_speed_min (CURA-863)
JSON: fix: max_value for call_fan_speed_min (CURA-863)

Curahelper/Cura,ynotstartups/Wanhao,hmflash/Cura,fieldOfView/Cura,Curahelper/Cura,senttech/Cura,senttech/Cura,fieldOfView/Cura,totalretribution/Cura,ynotstartups/Wanhao,hmflash/Cura,totalretribution/Cura