www/gitea: Update 1.22.2 → 1.22.3 (fixes security vulnerability)

Changelog:
https://github.com/go-gitea/gitea/releases/tag/v1.22.3

su -m cause checking authorized_keys in wrong place - replace it with su.

PR: 281949 281264
MFH: 2024Q4
(cherry picked from commit c1cc8c5f75f6e85e544498d7dc52e6fe5e2be8e0)