Cancel AMQP stream consumer when local stream member is deleted

[acogoluegnes]

An AMQP stream consumer hangs when its local stream is deleted.

Step to reproduce:

• spin up a 3-node cluster
• create a stream
• register an AMQP consumer on one of the nodes with a follower
• use rabbitmq-streams delete_replica on the node
• publish messages to the stream
• the consumer should not receive anything

The consumer reader process is gone and there is no way to recover it as the node does not have a member of the stream anymore, so it should be cancelled/detached.

See #4133, #4217