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

Consistent boolean values in ansible playbooks

roles/kubernetes/preinstall/tasks/main.yml

@@ -121,9 +121,9 @@
 - name: Check if we are running inside a Azure VM
   stat:
     path: /var/lib/waagent/
-    get_attributes: no
-    get_checksum: no
-    get_mime: no
+    get_attributes: false
+    get_checksum: false
+    get_mime: false
   register: azure_check
   when:
     - not dns_late