Fix sample inventory kube_version to 1.31.3 (#11767)

inventory/sample/group_vars/k8s_cluster/k8s-cluster.yml

@@ -17,7 +17,7 @@ kube_token_dir: "{{ kube_config_dir }}/tokens"
 kube_api_anonymous_auth: true
 
 ## Change this to use another Kubernetes version, e.g. a current beta release
-kube_version: v1.31.1
+kube_version: v1.31.3
 
 # Where the binaries will be downloaded.
 # Note: ensure that you've enough disk space (about 1G)