Set the default queueStopTimeout to >20 secs

[madrian]

This will ensure all polls to queues even the long polling ones can be closed gracefully before the shutdown times out and prevents the TimeoutException to be encountered quite frequently like in Spring Boot.

https://stackoverflow.com/questions/58601625/prevent-spring-cloud-aws-messaging-from-trying-to-stop-the-queue

This doesn't mean either that all shutdowns will take >20 secs since the queues maybe short polling or already on their end of the poll when the shutdown is triggered.