Use connection: local when delegate_to: localhost (#6322)

This will avoid SSH connection on the local host

roles/kubespray-defaults/tasks/fallback_ips.yml

@@ -21,6 +21,7 @@
       {{ item }}: "{{ found.get('address', '127.0.0.1') }}"
       {% endfor %}
   delegate_to: localhost
+  connection: local
   delegate_facts: yes
   become: no
   run_once: yes