Support 1.21.7 Login Event.

[vLuckyyy]

[18:27:36 INFO]: [HorriblePlayerLoginEventHack] You have plugins listening to the PlayerLoginEvent, this will cause re-configuration APIs to be unavailable: [LuckPerms, EternalCore]

[vLuckyyy]

More info: https://forums.papermc.io/threads/1-21-7.1635/