Celery tasks logs into Django logs configuration

[pulse-mind]

Description

The goal is to have logs used in the class of the application when the class is used in a Celery Task.
The logs were not available on production using supervisor and stdout.

And because logs are so important.

See #5559

Checklist:

• [ x] I've made sure that tests are updated accordingly (especially if adding or updating a template option)
• [ x] I've updated the documentation or confirm that my change doesn't require any updates

Rationale

Fix #5559