doc: add DerekNonGeneric to collaborators

Fixes: https://github.com/nodejs/node/issues/34369

PR-URL: https://github.com/nodejs/node/pull/34602


Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>