doc: add davisjam to collaborators

PR-URL: #21273
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matheus Marchini <matheus@sthima.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

README.md

@@ -347,6 +347,8 @@ For more information about the governance of the Node.js project, see
 **Daniel Bevenius** <daniel.bevenius@gmail.com>
 * [DavidCai1993](https://github.com/DavidCai1993) -
 **David Cai** <davidcai1993@yahoo.com> (he/him)
+* [davisjam](https://github.com/davisjam) -
+**Jamie Davis** <davisjam@vt.edu> (he/him)
 * [devsnek](https://github.com/devsnek) -
 **Gus Caplan** <me@gus.host> (he/him)
 * [edsadr](https://github.com/edsadr) -