www/gitea: Update 1.23.3 → 1.23.5 (fix security issues)

Changelogs:
https://blog.gitea.com/release-of-1.23.4/
https://blog.gitea.com/release-of-1.23.5/

PR: 285191
Approved by: Stefan Bethke <stb@lassitu.de> (maintainer)
MFH: 2025Q1

(cherry picked from commit 5cbc9c46110d1261669de8e9ca4fddd77d9dcdb6)