Fix template src of kibana configuration file

Change-Id: I4d409e052c00d83b451a2a13917f89531a88457f

ansible/roles/kibana/tasks/config.yml

@@ -30,7 +30,7 @@
   vars:
     kibana: "{{ kibana_services.kibana }}"
   template:
-    src: "kibana.yml.j2"
+    src: "{{ item }}"
     dest: "{{ node_config_directory }}/kibana/kibana.yml"
     mode: "0660"
   become: true