crypto: fix regression on randomFillSync

Signed-off-by: James M Snell <jasnell@gmail.com>

Fixes: https://github.com/nodejs/node/issues/35722
PR-URL: https://github.com/nodejs/node/pull/35723


Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Beth Griggs <bgriggs@redhat.com>