I removed the NO_CLICK (which made no sense) and the WXKG06LM switch sends a hold event in Zigbee (equivalent to a LONG_CLICK). It does not handle the press and release of the press.
I kept the values 3 and 4 to not break the Xiaomi service (case of other switches) and I have:
const BUTTON_STATUS = {
CLICK: 1,
DOUBLE_CLICK: 2,
LONG_CLICK_PRESS: 3,
LONG_CLICK_RELEASE: 4,
LONG_CLICK: 5,
};