Fix monasca use of "action" -> "kolla_action"

The word "action" is now an Ansible reserved word, and things have
transitioned to "kolla_action", but looks like this was missed.

Change-Id: Ie07a2a7d8b153a6d39b91129256727157f8dfa34

ansible/roles/monasca/handlers/main.yml

@@ -56,7 +56,7 @@
     image: "{{ service.image }}"
     volumes: "{{ service.volumes }}"
   when:
-    - action != "config"
+    - kolla_action != "config"
     - inventory_hostname in groups[service.group]
     - service.enabled | bool
     - config_json.changed | bool
@@ -76,7 +76,7 @@
     image: "{{ service.image }}"
     volumes: "{{ service.volumes }}"
   when:
-    - action != "config"
+    - kolla_action != "config"
     - inventory_hostname in groups[service.group]
     - service.enabled | bool
     - config_json.changed | bool