http2: add updateSettings to both http2 servers

Allow the user to update the server settings
after using http2.createSecureServer() or
after using http2.createServer().

Fixes: https://github.com/nodejs/node/issues/35353

PR-URL: https://github.com/nodejs/node/pull/35383


Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Ricky Zhou <0x19951125@gmail.com>