What is the best way to trigger notifications once a sync is complete? What I really want to do is to write a message to a kafka topic with information about what was synced (I will have multiple sources and connections, all syncing to S3). I see the notification webhook in the docs, but that seems to be mainly for slack? I am happy to write an endpoint that takes in the notification webhook call and writes to kafka, assuming enough info is passed in the webhook call (like what was synced). I prefer to use the airbyte scheduler to trigger syncs and not airflow.