Do not use ‘yes/no’ for boolean values (#11472)

Consistent boolean values in ansible playbooks

roles/kubernetes-apps/cluster_roles/tasks/main.yml

@@ -2,7 +2,7 @@
 - name: Kubernetes Apps | Wait for kube-apiserver
   uri:
     url: "{{ kube_apiserver_endpoint }}/healthz"
-    validate_certs: no
+    validate_certs: false
     client_cert: "{{ kube_apiserver_client_cert }}"
     client_key: "{{ kube_apiserver_client_key }}"
   register: result