Upgrade node template OS version;Upgrade K8s minor version

ansible/vars/metacluster.yml

@@ -1,7 +1,7 @@
 platform:
 
   k3s:
-    version: v1.26.3+k3s1
+    version: v1.26.4+k3s1
 
   packaged_components:
     - name: traefik
@@ -119,9 +119,9 @@ components:
     workload:
       version:
         calico: v3.25.0
-        k8s: v1.26.3
+        k8s: v1.26.4
       node_template:
-        url: https://{{ repo_username }}:{{ repo_password }}@sn.itch.fyi/Repository/rel/ubuntu-2004-kube-v1.26.3.ova
+        url: https://{{ repo_username }}:{{ repo_password }}@sn.itch.fyi/Repository/rel/ubuntu-2204-kube-v1.26.4.ova
 
   # dex:
   #   helm: