RFE: CentOS Stream + EPEL Python 3.13 images

[hroncok]

I see we offer Fedora containers with 3.13. Should we also offer CentOS Stream + EPEL (10, possibly 9)?

I don't need this, it's just an idea. Feel free to decide not to.

[frenzymadness]

I've tried to implement this but there is a problem when I install epel-release via microdnf in the minimal container:

(microdnf:24): librepo-WARNING **: 13:00:03.044: LRO_METALINKURL processing failed: Status code: 404 for https://mirrors.fedoraproject.org/metalink?repo=epel${releasever_minor:+-z}-10&arch=x86_64 (IP: 38.145.32.20)
error: Failed to download gpg key for repo 'epel': Curl error (37): Could not read a file:// file for file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-$releasever_major [Couldn't open file /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-$releasever_major]

I have to solve it.

[hroncok]

Looks like $releasever_major is not defined.

[frenzymadness]

Feel free to review the PR. I think it's ready.