Added support for syncing DEP11 files

[DEiselt]

This change aims to add support for syncing of DEP11 metadata files, enabling the use of application stores like KDE Discover which are based on Appstream.

closes: #1276

[DEiselt]

Hi @hstct @quba42 could you take a look and give some feedback if this can be included / what needs to be improved?

[quba42]

@DEiselt My apologies for the lack of response so far. As always things are super busy, but I have scheduled an internal meeting with @hstct for this Wednesday to have a look at this and your other PR.

[hstct]

It would be really great if we could make this feature optional.

Similar to the sync_udebs or sync_sources options. https://pulpproject.org/pulp_deb/restapi/#tag/Remotes:-Apt/operation/remotes_deb_apt_create

So an option you can set on the remote like sync_dep11.

---

Ideally we would want to have tests for this as well, however, this is trickier since we would need to create a new or expand one of the existing test data repositories. I'm not sure on the top of my head if these files need to be added via a reprepo command or not.

We'll need to look into this, but I wanted to give some immediate feedback first!

[stale]

This pull request has been marked 'stale' due to lack of recent activity. If there is no further activity, the PR will be closed in another 30 days. Thank you for your contribution!

[DEiselt]

Thanks for removing the stale label. I'm still working to finish #1275

[stale]

This pull request has been marked 'stale' due to lack of recent activity. If there is no further activity, the PR will be closed in another 30 days. Thank you for your contribution!

[DEiselt]

That PR isn't stale but needs rebasing to main (and resolving conflicts).

[stale]

This issue is no longer marked for closure.

[stale]

This pull request is no longer marked for closure.