rbac.authorization.k8s.io/v1beta1 is going to removed on v1.22.0

Created by: RolandMa1986

rbac.authorization.k8s.io/v1beta1 was deprecated since k8s 1.17.0 and it will be removed in v1.22. Need use rbac.authorization.k8s.io/v1 instead.

fix #1422 (closed) Signed-off-by: Roland.Ma rolandma@yunify.com