firmitas: configure the cronjob to run once a month

Signed-off-by: David Kirwan <davidkirwanirl@gmail.com>

roles/openshift-apps/firmitas/templates/cronjob.yml.j2

@@ -5,7 +5,7 @@ metadata:
   name: "{{firmitas_application_name}}"
   namespace: "{{firmitas_namespace}}"
 spec:
-  schedule: "*/2 * * * *"
+  schedule: "0 0 1 * *"
   timeZone: Etc/UTC
   concurrencyPolicy: "Forbid"
   startingDeadlineSeconds: 200