Support publishing packages with repository links

[Renari]

Feature Description

Currently if you follow:
https://docs.gitea.com/usage/packages/maven

It suggests you publish packages to:
https://gitea.example.com/api/packages/{owner}/maven

This publishes packages at the user/org level and does not make an association with the underlying repository, you must go to:
https://gitea.example.com/{owner}/-/packages/maven/{publication-name}/settings

And set the repository link manually, this can become very tedious, I suggest being able to publish to another URL to automatically create these repository links.

https://gitea.example.com/api/packages/{owner}/{repo}/maven

Could create the same publication but automatically create the repo link, thus preventing the manual step.

It looks like Github manages this quite differently than Gitea does:
https://docs.github.com/en/actions/publishing-packages/publishing-java-packages-with-gradle#publishing-packages-to-github-packages

But similarly to the above does have the repo name in the publication endpoint.

Screenshots

No response

[Renari]

duplicate of: #21062

[github-actions]

Automatically locked because of our CONTRIBUTING guidelines