JIRA INFRA-525 #action In Progress

JIRA INFRA-500 #action In Progress

https://black.readthedocs.io/en/stable/

Table used to save the RQ background jobs

JIRA INFRA-403

- RQ Dashboard shall only be accessible to admin users
- "REDIS_URL" is hard-coded in rq-dashboard (had to rename RQ_REDIS_URL)

Let alembic handle the database creation and migration

Command shall be run every night to keep the users in the database in
sync with the LDAP server.
If a user is not found:
- set its groups to []
- revoke all its tokens