[ISSUE #994] Fix: unlock all queues when consumer shutdown in orderly model

[cserwen]

What is the purpose of the change

fix #994

Brief changelog

XX

Verifying this change

XXXX

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[qshuai]

It seem ok to me.

[francisoliverlee]

that's nice one.

marked:
https://github.com/apache/rocketmq/blob/3f8cf890ffddb13dd7deeb031054ddb7abbac757/client/src/main/java/org/apache/rocketmq/client/impl/consumer/ConsumeMessageOrderlyService.java#L108-L115