doc: add trivikr to collaborators

trivikr is nominated as node core collaborator for his work on http2
https://github.com/nodejs/node/commits?author=trivikr

Refs: #19067

PR-URL: #19384
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Matheus Marchini <matheus@sthima.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>

README.md

@@ -497,6 +497,8 @@ For more information about the governance of the Node.js project, see
 **Tobias Nießen** <tniessen@tnie.de>
 * [trevnorris](https://github.com/trevnorris) -
 **Trevor Norris** <trev.norris@gmail.com>
+* [trivikr](https://github.com/trivikr) -
+**Trivikram Kamat** <trivikr.dev@gmail.com>
 * [Trott](https://github.com/Trott) -
 **Rich Trott** <rtrott@gmail.com> (he/him)
 * [tunniclm](https://github.com/tunniclm) -