fs: fix promises reads with pos > 4GB

PR-URL: https://github.com/nodejs/node/pull/21148
Fixes: https://github.com/nodejs/node/issues/21121
Refs: https://github.com/nodejs/node/pull/21003


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>