update cilium to 1.15.9 (#11593)

README.md

@@ -168,7 +168,7 @@ Note: Upstart/SysV init based OS types are not supported.
 - Network Plugin
   - [cni-plugins](https://github.com/containernetworking/plugins) v1.2.0
   - [calico](https://github.com/projectcalico/calico) v3.28.1
-  - [cilium](https://github.com/cilium/cilium) v1.15.4
+  - [cilium](https://github.com/cilium/cilium) v1.15.9
   - [flannel](https://github.com/flannel-io/flannel) v0.22.0
   - [kube-ovn](https://github.com/alauda/kube-ovn) v1.12.21
   - [kube-router](https://github.com/cloudnativelabs/kube-router) v2.0.0

inventory/sample/group_vars/k8s_cluster/k8s-net-cilium.yml

 ---
-# cilium_version: "v1.15.4"
+# cilium_version: "v1.15.9"
 
 # Log-level
 # cilium_debug: false

roles/kubespray-defaults/defaults/main/download.yml

@@ -115,7 +115,7 @@ flannel_cni_version: "v1.1.2"
 weave_version: 2.8.7
 cni_version: "v1.4.0"
 
-cilium_version: "v1.15.4"
+cilium_version: "v1.15.9"
 cilium_cli_version: "v0.16.0"
 cilium_enable_hubble: false