Merge pull request #21819 from aanm/update-kubeadm-cilium-docs

update kubeadm Cilium related docs

Author: k8s-ci-robot

content/en/docs/tasks/administer-cluster/network-policy-provider/cilium-network-policy.md

@@ -51,7 +51,7 @@ For minikube you can deploy this simple ''all-in-one'' YAML file that includes
 DaemonSet configurations for Cilium as well as appropriate RBAC settings:
 
 ```shell
-kubectl create -f https://raw.githubusercontent.com/cilium/cilium/v1.6/install/kubernetes/quick-install.yaml
+kubectl create -f https://raw.githubusercontent.com/cilium/cilium/v1.8/install/kubernetes/quick-install.yaml
 ```
 ```
 configmap/cilium-config created