update to latest 2.26.0 kubespray version and add dns zones settings to coredns

kubespray/inventory/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: v1.29.0
+kube_version: v1.30.3
 
 # Where the binaries will be downloaded.
 # Note: ensure that you've enough disk space (about 1G)
@@ -179,7 +179,6 @@ nodelocaldns_health_port: 9254
 nodelocaldns_second_health_port: 9256
 nodelocaldns_bind_metrics_host_ip: false
 nodelocaldns_secondary_skew_seconds: 5
-# nodelocaldns_external_zones:
 # - zones:
 #   - example.com
 #   - example.io:1053