Added CANCELLED

Author: calvinp0

arc/job/pipe/pipe_state.py

@@ -110,7 +110,7 @@ class PipeRunState(str, Enum):
 
 # Allowed transitions: maps each state to the set of states it may transition to.
 TASK_TRANSITIONS: Dict[TaskState, Tuple[TaskState, ...]] = {
-    TaskState.PENDING: (TaskState.CLAIMED, TaskState.CANCELLED),
+    TaskState.PENDING: (TaskState.CLAIMED, TaskState.CANCELLED, TaskState.FAILED_TERMINAL),
     TaskState.CLAIMED: (TaskState.RUNNING, TaskState.ORPHANED, TaskState.CANCELLED),
     TaskState.RUNNING: (TaskState.COMPLETED, TaskState.FAILED_RETRYABLE, TaskState.FAILED_ESS,
                         TaskState.FAILED_TERMINAL, TaskState.ORPHANED, TaskState.CANCELLED),