Since libvirt-dockerfile commit 7130ffe0a0e9, the containers
used for CI builds have been renamed from buildenv-* to
buildenv-libvirt-* in order to make it possible for projects
other than libvirt to be supported, so we need to update our
Makefile.ci scaffolding accordingly.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NFabiano Fidêncio <fidencio@redhat.com>