Fix logging configuration for Celery tasks

[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:

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

Rationale

• Fix How to obtain the logs from function of the app when a task is running using celery? #5559
• Fix Add CELERY_WORKER_HIJACK_ROOT_LOGGER = False to default settings #5616

[browniebroke]

Thanks!