update cilium cli offline download url example (#9458)

Signed-off-by: cleverhu <shouping.hu@daocloud.io>

Signed-off-by: cleverhu <shouping.hu@daocloud.io>

inventory/sample/group_vars/all/offline.yml

@@ -37,6 +37,9 @@
 # [Optional] Calico with kdd: If using Calico network plugin with kdd datastore
 # calico_crds_download_url: "{{ files_repo }}/github.com/projectcalico/calico/archive/{{ calico_version }}.tar.gz"
 
+# [Optional] Cilium: If using Cilium network plugin
+# ciliumcli_download_url: "{{ files_repo }}/github.com/cilium/cilium-cli/releases/download/{{ cilium_cli_version }}/cilium-linux-{{ image_arch }}.tar.gz"
+
 # [Optional] Flannel: If using Falnnel network plugin
 # flannel_cni_download_url: "{{ files_repo }}/kubernetes/flannel/{{ flannel_cni_version }}/flannel-{{ image_arch }}"