Store non-durable queues in separate transient dir #4900

Job	Run time
Format check	12s
Lint check	1m 5s
Lint javascript	16s
Lint OpenAPI	14s
Spec	1m 54s
Spec OS X	2m 22s
Compile LavinMQ	1m 7s
Spec FreeBSD	2m 36s
Filters for frontend specs	3s
RabbitMQ java client test	5m 3s
RabbitMQ HTTP API Go client test	1m 4s
Bunny client test	2m 31s
Test in release mode	21s
RabbitMQ HTTP API Ruby client test	55s
Frontend specs	0s
	19m 43s

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