Add FreeBSD-SA-23:01.geli.asc to 13.1R Errata

From: Yonas Yanfa <yonas.yanfa_at_gmail.com>
Date: Sun, 12 Feb 2023 16:13:22 UTC

Hi,

I can't find FreeBSD-SA-23:01.geli.asc on 
https://www.freebsd.org/releases/13.1R/errata.

Cheers,
Yonas