fix: use kube_apiserver_endpoint for kubeadm discovery

Author: kajal-jotwani

roles/kubernetes/control-plane/templates/kubeadm-controlplane.yaml.j2

@@ -6,7 +6,7 @@ discovery:
     kubeConfigPath: {{ kube_config_dir }}/cluster-info-discovery-kubeconfig.yaml
 {% else %}
   bootstrapToken:
-    apiServerEndpoint: "{{ _kube_apiserver_cluster_internal_endpoint | urlsplit('netloc') }}"
+    apiServerEndpoint: "{{ _kube_apiserver_endpoint | urlsplit('netloc') }}"
     token: {{ kubeadm_token }}
     unsafeSkipCAVerification: true
 {% endif %}