doc: document rmdir/recursive deprecation

Document deprecation of rmdir/recursive permissive functionality

PR-URL: https://github.com/nodejs/node/pull/35579
Refs: https://github.com/nodejs/node/pull/35562


Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>