Do not build libpkgmanifest on RHEL 9

[ppisar]

It requires yaml-cpp ≥ 0.7.0 and swig ≥ 4.2.0 which do not exist in RHEL 9. The team decided on 2025-10-06 meeting that libpkgmanifs won't be supported there.

[kontura]

I believe this will not work.
The distgit-overrides are used to override distgit config for a particular chroot it doesn't disable the rest (it also requires more mandatory settings).

Looking into rpm-gitoverlay I don't think there is a way to disable particular chroot(s) only for some component(s).
Hopefully we will get more flexibility after switching to packit: #1751.

I did look into the nightly builds and it seems maybe half? of the components are also failing on centos-stream+epel-next-9-x86_64 and epel-9-x86_64 . Perhaps we could disable those chroots for the whole COPR project?

[ppisar]

I believe this will not work. The distgit-overrides are used to override distgit config for a particular chroot it doesn't disable the rest (it also requires more mandatory settings).

Looking into rpm-gitoverlay I don't think there is a way to disable particular chroot(s) only for some component(s).

Ok.

Hopefully we will get more flexibility after switching to packit: #1751.

I did look into the nightly builds and it seems maybe half? of the components are also failing on centos-stream+epel-next-9-x86_64 and epel-9-x86_64 . Perhaps we could disable those chroots for the whole COPR project?

I'd like to keep building for RHEL 9 as much as component as possible to be sure we do not break building there. To ease backporting to rhel branches. To test and discover problems early as possible.