Hide sensitive data (password) in apply_async (argspec or kwargspec)

[bobslee]

From the Celery docs:

Sensitive information will still be accessible to anyone able to read your task message from the broker, or otherwise able intercept it.

More info and recommendation: http://docs.celeryproject.org/en/latest/userguide/tasks.html#hiding-sensitive-information-in-arguments

Code to change: Change the password to argspec or kwargspec. Keep other arguments visible though, for log/monitoring purposes.

https://github.com/novacode-nl/odoo-celery/blob/11.0/celery/models/celery_task.py#L160