events: refactor to use primordials in lib/events

Replace code that's vulnerable to Prototype Pollution with Primordials.

PR-URL: https://github.com/nodejs/node/pull/38117


Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>