[TRIGGER] [Discord] event when a member is removed from a guild

[jfloodnet]

Describe the event source. What app is this for, and what event does the trigger correspond to?

Would love to have a trigger for when a member is removed from a discord guild.

Please provide a link to the relevant API docs for the specific service / operation this trigger is tied to.

https://discord.com/developers/docs/events/gateway-events#guild-member-remove

[michelle0927]

@dannyroosevelt @danhsiung Discord uses an appHook for its triggers, so this update will need to be developed internally.

Related issues:
#4507
#4867
#5440
#14337