Ignore coverage for another never-hit test line

Author: LucaButBoring

tests/shared/test_pending_request.py

@@ -499,7 +499,7 @@ async def cancellable_get_task(task_id: str):
             nonlocal get_task_cancelled
             try:
                 await asyncio.sleep(10)  # Will be cancelled
-                return GetTaskResult(taskId=task_id, status="submitted", pollInterval=100)
+                return GetTaskResult(taskId=task_id, status="submitted", pollInterval=100)  # pragma: no cover
             except asyncio.CancelledError:
                 get_task_cancelled = True
                 raise