tests: assign sig-storage label to k8s IO events tests
tests: assign sig-storage label to k8s IO events tests

Signed-off-by: Igor Bezukh <9113621149c2d8e5a2b31fa2465615555ce2087b@redhat.com>

davidvossel/kubevirt,stu-gott/kubevirt,stu-gott/kubevirt,davidvossel/kubevirt,kubevirt/kubevirt,stu-gott/kubevirt,kubevirt/kubevirt,stu-gott/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt