[diracx-tasks] `redis` should be a mandatory parameter of task_wrapper

[chaen]

There's no reason for redis to ever be None.

diracx/diracx-tasks/src/diracx/tasks/plumbing/factory.py

Line 62 in b3ec8eb

_redis: LockCoordinator | None = None,

DoD:

• Remove the None
• Remove any condition testing None (see

  diracx/diracx-tasks/src/diracx/tasks/plumbing/factory.py

  Lines 89 to 91 in b3ec8eb

  	if _redis is None:
  	logger.warning("No Redis connection — skipping lock %s", lock.redis_key)
  	continue

  )
• Check the unit tests (may be need to some adjustments)