doc: update contact email for @ryzokuken

Update my personal email address from usharma1998@gmail.com (tired)
to ryzokuken@disroot.org (wired).

PR-URL: #31670
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>

Author: ryzokuken

README.md

@@ -390,7 +390,7 @@ For information about the governance of the Node.js project, see
 * [rvagg](https://github.com/rvagg) -
 **Rod Vagg** <rod@vagg.org>
 * [ryzokuken](https://github.com/ryzokuken) -
-**Ujjwal Sharma** <usharma1998@gmail.com> (he/him)
+**Ujjwal Sharma** <ryzokuken@disroot.org> (he/him)
 * [saghul](https://github.com/saghul) -
 **Saúl Ibarra Corretgé** <saghul@gmail.com>
 * [sam-github](https://github.com/sam-github) -