Cirrus: Drop dependence on fedora-minimal
Cirrus: Drop dependence on fedora-minimal

This image is no-longer maintained and unnecessarily large for
essentially a "no-op" task.  Use alpine instead, which is likely
cached from heavy use anyway, and don't even bother running
commands through a shell.

Signed-off-by: Chris Evich <352d8596d782a469eafa66a46434e15a449859ce@redhat.com>

TomSweeneyRedHat/buildah,rhatdan/buildah,TomSweeneyRedHat/buildah,rhatdan/buildah,nalind/buildah-1,projectatomic/buildah,rhatdan/buildah,nalind/buildah-1,TomSweeneyRedHat/buildah,nalind/buildah-1,nalind/buildah,projectatomic/buildah,projectatomic/buildah,nalind/buildah