docs: add warning about kube_api_anonymous_auth

roles/kubespray-defaults/defaults/main/main.yml

@@ -6,6 +6,8 @@ ansible_ssh_common_args: "{% if 'bastion' in groups['all'] %} -o ProxyCommand='s
 # selinux state
 preinstall_selinux_state: permissive
 
+# Setting this value to false will fail
+# For details, read this comment https://github.com/kubernetes-sigs/kubespray/pull/11016#issuecomment-2004985001
 kube_api_anonymous_auth: true
 
 # Default value, but will be set to true automatically if detected