Use STATE_DOCKED for emptying the bin for xiaomi_miio.vacuum (#60513)

homeassistant/components/xiaomi_miio/vacuum.py

@@ -92,6 +92,7 @@ STATE_CODE_TO_STATE = {
     16: STATE_CLEANING,  # "Going to target"
     17: STATE_CLEANING,  # "Zoned cleaning"
     18: STATE_CLEANING,  # "Segment cleaning"
+    22: STATE_DOCKED,  # "Emptying the bin" on s7+
     100: STATE_DOCKED,  # "Charging complete"
     101: STATE_ERROR,  # "Device offline"
 }