ensure we're passing through api keys and key types from notifications

when we made the change to async persist notifications, we forgot to
pass through api_key_id and key_type. in send_sms/email, for legacy
reasons, they default to None/KEY_TYPE_NORMAL, so regardless of what
your api key was set up as, we would send real messages!

TODO: Once the PaaS transition is complete and the task changes are
reverted, remove the api_key_id and key_type params from the send_*
tasks entirely, as those are only called from the csv job flow, and
don't need them

app/v2/notifications/post_notifications.py

@@ -68,12 +68,14 @@ def post_notification(notification_type):
 
     if not simulated:
         tasks.send_notification_to_persist_queue(
-            notification.id,
-            service,
-            template.template_type,
-            encrypted,
-            template.process_type == PRIORITY,
-            service.research_mode or api_user.key_type == KEY_TYPE_TEST
+            notification_id=notification.id,
+            service=service,
+            template_type=template.template_type,
+            encrypted=encrypted,
+            api_key_id=str(notification.api_key_id),
+            key_type=api_user.key_type,
+            priority=template.process_type == PRIORITY,
+            research_mode=service.research_mode or api_user.key_type == KEY_TYPE_TEST
         )
         # not doing this during paas migration
         # queue_name = 'notify' if template.process_type == PRIORITY else None