src: add typedef for CleanupHookCallback callback

This commit adds a typedef for the callback parameter used in
CleanupHookCallback's constructor, AddCleanupHook, and
RemoveCleanupHook.

PR-URL: https://github.com/nodejs/node/pull/36442


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>