External Task Sensor Async

To waits asynchronously for a external task to complete ExternalTaskSensorAsync.

waiting_for_task = ExternalTaskSensorAsync(
    task_id="waiting_for_task",
    external_task_id="wait_for_me",
    external_dag_id="example_external_task",
)
# https://github.com/astronomer/astronomer-providers/tree/main/astronomer/providers/core/example_dags/example_external_task.py