doc: add build wg info to releases.md

PR-URL: https://github.com/nodejs/node/pull/21275


Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Matheus Marchini <matheus@sthima.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>