Flaky Test StandbyTaskCreationIntegrationTest.shouldCreateStandByTasksForMaterializedAndOptimizedSourceTables

https://builds.apache.org/job/kafka-pr-jdk8-scala2.12/122/testReport/junit/org.apache.kafka.streams.integration/StandbyTaskCreationIntegrationTest/shouldCreateStandByTasksForMaterializedAndOptimizedSourceTables/

java.lang.AssertionError: Condition not met within timeout 30000. At least one client did not reach state RUNNING with active tasks and stand-by tasks: Client 1 is NOT OK, client 2 is NOT OK. at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:24) at org.apache.kafka.test.TestUtils.lambda$waitForCondition$4(TestUtils.java:369) at org.apache.kafka.test.TestUtils.retryOnExceptionWithTimeout(TestUtils.java:417) at org.apache.kafka.test.TestUtils.retryOnExceptionWithTimeout(TestUtils.java:385) at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:368) at org.apache.kafka.test.TestUtils.waitForCondition(TestUtils.java:356) at org.apache.kafka.streams.integration.StandbyTaskCreationIntegrationTest.waitUntilBothClientAreOK(StandbyTaskCreationIntegrationTest.java:178) at org.apache.kafka.streams.integration.StandbyTaskCreationIntegrationTest.shouldCreateStandByTasksForMaterializedAndOptimizedSourceTables(StandbyTaskCreationIntegrationTest.java:141)