manifests: use rbac.authorization.k8s.io/v1 instead of v1beta1
manifests: use rbac.authorization.k8s.io/v1 instead of v1beta1

rbac.authorization.k8s.io/v1beta1 has been deprecated

Signed-off-by: Antonio Cardace <c1692accd51a623bf82e7e7c9b13c3c3a1045937@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt