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

roles/kubespray-defaults/tasks/fallback_ips_gather.yml

@@ -7,4 +7,5 @@
     gather_subset: '!all,network'
     filter: "ansible_default_ipv4"
   delegate_to: "{{ delegate_host_to_gather_facts }}"
+  connection: "{{ (delegate_host_to_gather_facts == 'localhost') | ternary('local', omit) }}"
   delegate_facts: yes

roles/kubespray-defaults/tasks/no_proxy.yml

@@ -19,6 +19,7 @@
       {%- endif -%}
       127.0.0.1,localhost,{{ kube_service_addresses }},{{ kube_pods_subnet }}
   delegate_to: localhost
+  connection: local
   delegate_facts: yes
   become: no
   run_once: yes