Use Celery tasks to download channel traces and test them
Use Case 4 in [workflow examples](https://dev.to/akarshan/the-curious-case-of-celery-work-flows-39f7)
- [ ] [Periodic tasks](https://docs.celeryq.dev/en/stable/userguide/periodic-tasks.html#crontab-schedules)
- [x] [Workflow](https://docs.celeryq.dev/en/stable/userguide/canvas.html#the-primitives)
- [x] [Best practices](https://docs.celeryq.dev/en/stable/userguide/tasks.html#tips-and-best-practices)
- [x] [Use pyramid integration ?](https://docs.celeryq.dev/en/stable/getting-started/introduction.html#framework-integration) Probably no
- [ ] [Testing](https://docs.celeryq.dev/en/stable/userguide/testing.html)
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