[Service Bus] Stress Test - Receive Batch seems to hang independent of receiving 2047 messages

[HarshaNalluru]

Test - scenarioBatchReceive.ts

(Issue #11633 happens at 2047)
From the stress test logs of "total number of messages received" snapshots, the test does receive more than 2047 messages. (Could be the case that some of the "drain" calls worked and this may have just been a subset of #11633)

Scenario to repro

ts-node scenarioBatchReceive.ts --settleMessageOnReceive=true --sendAllMessagesBeforeReceiveStarts=true --numberOfMessagesPerSend=1200 --numberOfParallelSends=20 --totalNumberOfMessagesToSend=100000 --receiveBatchMaxMessageCount=1000

[HarshaNalluru]

Did several runs of this test on my local machine while testing #14060. I don't see the issue anymore. Hence, closing this as per the discussion with @ramya-rao-a.

As a sidenote, a set of major(complicated) changes are being done to service-bus SDK at #13956 #14060 and amqp/rhea-promise#78.

If the future set of stress testing repros this issue, I'll log a new issue with more findings and investigate further.