build error ucore-hci:testing: installing libvirtd causes nfs-utils conflicts with nfs-utils-coreos

[bsherman]

This is happening on recent ucore-hci:testing builds, seemingly new since testing is now based on fedora38.

It's not clear to me why this is wasn't happening for our builds FCOS/fedora37 ucore builds, as it's certainly popped up in the past for other FCOS users.
coreos/fedora-coreos-tracker#572

[bsherman]

Upon investigation, this is not failing in fedora37/stable FCOS due to probably a bug in the rpm spec for nfs-utils & nfs-utils-coreos on that release.

I notice that our ucore-hci:stable build actually has both packages:

$ rpm -qa |grep nfs-util
nfs-utils-coreos-2.6.2-2.rc6.fc37.x86_64
nfs-utils-2.6.2-2.rc6.fc37.x86_64

This is probably not an issue as nfs-utils-coreos is a subset of the files in nfs-utils, but the fedora38 packages are more correct to report a conflict as the files within the packages are the same.