test: use dnf instead of package with loop
test: use dnf instead of package with loop

as it is more efficient per the docs, as well as should work for both python2 and 3

Signed-off-by: Peter Hunt <fb7b1ad57b81f1e149129d77ecccc59c02fe0648@redhat.com>

nalind/cri-o,kubernetes-incubator/cri-o,nalind/cri-o,mikebrow/cri-o,mikebrow/cri-o,kubernetes-incubator/ocid,kubernetes-incubator/cri-o,kubernetes-incubator/cri-o,mikebrow/cri-o,kubernetes-incubator/ocid,nalind/cri-o,kubernetes-incubator/cri-o,kubernetes-incubator/ocid,mikebrow/cri-o