fix quotations in dhclient hooks (#11946)

roles/kubernetes/preinstall/tasks/0100-dhclient-hooks.yml

@@ -4,7 +4,11 @@
     # 1 is the 2nd item of a tuple in items()
     block: |-
       {% for key, val in dhclient_supersede.items() | rejectattr(1, '==', []) -%}
+      {% if key == "domain-name-servers" -%}
       supersede {{ key }} {{ val | join(',') }};
+      {% else -%}
+      supersede {{ key }} "{{ val | join('","') }}";
+      {% endif -%}
       {% endfor %}
     path: "{{ dhclientconffile }}"
     create: true