Ignore CancelledError in do_wait_for_deployment, and wait until all wait_until_instance_is_done tasks are fully cancelled before tearing down the ThreadPoolExecutor.
Ignore CancelledError in do_wait_for_deployment, and wait until all wait_until_instance_is_done tasks are fully cancelled before tearing down the ThreadPoolExecutor.

Yelp/paasta,Yelp/paasta