Feat: kubeadm images download support v1beta4

Currently there is not much difference between the files, if there are more changes in the future,
please use different files to distinguish them (you can use the kubeadm_config_api_version variable)

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

roles/download/templates/kubeadm-images.yaml.j2

@@ -1,9 +1,9 @@
-apiVersion: kubeadm.k8s.io/v1beta3
+apiVersion: kubeadm.k8s.io/{{ kubeadm_config_api_version }}
 kind: InitConfiguration
 nodeRegistration:
   criSocket: {{ cri_socket }}
 ---
-apiVersion: kubeadm.k8s.io/v1beta3
+apiVersion: kubeadm.k8s.io/{{ kubeadm_config_api_version }}
 kind: ClusterConfiguration
 imageRepository: {{ kube_image_repo }}
 kubernetesVersion: {{ kube_version }}