[kube-router] set default version to 1.6.0 (kubernetes-sigs#10478)

Signed-off-by: Boris Barnier <bozzo@users.noreply.github.com>

README.md

@@ -172,7 +172,7 @@ Note: Upstart/SysV init based OS types are not supported.
   - [cilium](https://github.com/cilium/cilium) v1.13.4
   - [flannel](https://github.com/flannel-io/flannel) v0.22.0
   - [kube-ovn](https://github.com/alauda/kube-ovn) v1.11.5
-  - [kube-router](https://github.com/cloudnativelabs/kube-router) v1.5.1
+  - [kube-router](https://github.com/cloudnativelabs/kube-router) v1.6.0
   - [multus](https://github.com/k8snetworkplumbingwg/multus-cni) v3.8
   - [weave](https://github.com/weaveworks/weave) v2.8.1
   - [kube-vip](https://github.com/kube-vip/kube-vip) v0.5.12

roles/download/defaults/main/main.yml

@@ -122,7 +122,7 @@ cilium_enable_hubble: false
 
 kube_ovn_version: "v1.11.5"
 kube_ovn_dpdk_version: "19.11-{{ kube_ovn_version }}"
-kube_router_version: "v1.5.1"
+kube_router_version: "v1.6.0"
 multus_version: "v3.8"
 helm_version: "v3.12.3"
 nerdctl_version: "1.5.0"