doc: add missing entry in `globals.md`

Refs: https://github.com/nodejs/node/pull/39759#issuecomment-947236795

PR-URL: https://github.com/nodejs/node/pull/40531


Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>