[Feature]: Updating go-git version

[AndreHenkel]

Would it be possible to update the go-git version in this project to its latest v5 version. I.e. [go-git/go-git v5.13.2]

Because the current go-git version has many security vulnerabilities:

CVE-2023-49569
BDSA-2025-0048
CVE-2023-49568
BDSA-2025-0049

Since this project is used as part of the oauth-proxy, the go-git dependencies are there as well.
This might not lead to any security vulnerability, but it would be nice to have a version without any known risks nevertheless.