www/gitea: Update to 1.17.3 (fixes security vulnerabilities)

• This release fixes three security issues, a large number of bugs and contains some enhancements.
• Pet portlint

ChangeLog: https://github.com/go-gitea/gitea/releases/tag/v1.17.3
PR: 267106
MFH: 2022Q4
Security: d713d709-4cc9-11ed-a621-0800277bb8a8
(cherry picked from commit 242f679b4b48a1e26b256f9f6e02256c11abc9d0)