Values:
STATE_UNSPECIFIED (0):
The state is unspecified.
PENDING (1):
The task is waiting for orchestration.
ORCHESTRATING (2):
The task is assigned to an orchestrator.
RUNNING (3):
The task is running, i.e. its subtasks are
ready for execution.
PAUSED (4):
Tha task is paused. Assigned subtasks can
continue, but no new subtasks will be scheduled.
SUCCEEDED (5):
The task finished successfully.
FAILED (6):
The task finished unsuccessfully.
