enable sentry on celery tasks

**Background:**
if we can get sentry working on celery tasks, then when theres a long running query we could just go in and pg_terminate_backend(pid) the long queries and watch in the senry logs which job fails.

https://docs.sentry.io/platforms/python/guides/celery/configuration/integrations/django/

**Acceptance Criteria**
celery bugs are reported to sentry