doc: add release key for Richard Lau

Add Richard Lau and his Release key.

Signed-off-by: Richard Lau <riclau@uk.ibm.com>

PR-URL: #34397
Refs: nodejs/Release#585
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

README.md

@@ -546,6 +546,8 @@ GPG keys used to sign Node.js releases:
 `8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600`
 * **Myles Borins** <myles.borins@gmail.com>
 `C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8`
+* **Richard Lau** <riclau@uk.ibm.com>
+`C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C`
 * **Rod Vagg** <rod@vagg.org>
 `DD8F2338BAE7501E3DD5AC78C273792F7D83545D`
 * **Ruben Bridgewater** <ruben@bridgewater.de>
@@ -562,6 +564,7 @@ gpg --keyserver pool.sks-keyservers.net --recv-keys 71DCFD284A79C3B38668286BC97E
 gpg --keyserver pool.sks-keyservers.net --recv-keys FD3A5288F042B6850C66B31F09FE44734EB7990E
 gpg --keyserver pool.sks-keyservers.net --recv-keys 8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600
 gpg --keyserver pool.sks-keyservers.net --recv-keys C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8
+gpg --keyserver pool.sks-keyservers.net --recv-keys C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C
 gpg --keyserver pool.sks-keyservers.net --recv-keys DD8F2338BAE7501E3DD5AC78C273792F7D83545D
 gpg --keyserver pool.sks-keyservers.net --recv-keys A48C2BEE680E841632CD4E44F07496B3EB3C1762
 gpg --keyserver pool.sks-keyservers.net --recv-keys B9E2F5981AA6E0CD28160D9FF13993A75599653C