Flaky-test: KafkaApisTest.testConsumerListOffset

[BewareMyPower]

KafkaApisTest is flaky. The testConsumerListOffset method fails sporadically.

example failure

Error:  testConsumerListOffset(io.streamnative.pulsar.handlers.kop.KafkaApisTest)  Time elapsed: 10.646 s  <<< FAILURE!
java.lang.AssertionError: expected [10] but found [11]
	at org.testng.Assert.fail(Assert.java:96)
	at org.testng.Assert.failNotEquals(Assert.java:776)
	at org.testng.Assert.assertEqualsImpl(Assert.java:137)
	at org.testng.Assert.assertEquals(Assert.java:118)
	at org.testng.Assert.assertEquals(Assert.java:547)
	at org.testng.Assert.assertEquals(Assert.java:557)
	at io.streamnative.pulsar.handlers.kop.KafkaApisTest.testConsumerListOffset(KafkaApisTest.java:519)