Flaky Test AdminClientIntegrationTest.testCreatePartitions

https://builds.apache.org/job/kafka-pr-jdk11-scala2.13/2792/testReport/junit/kafka.api/AdminClientIntegrationTest/testCreatePartitions/

java.lang.AssertionError: validateOnly expected:<3> but was:<1> at org.junit.Assert.fail(Assert.java:89) at org.junit.Assert.failNotEquals(Assert.java:835) at org.junit.Assert.assertEquals(Assert.java:647) at kafka.api.AdminClientIntegrationTest.$anonfun$testCreatePartitions$5(AdminClientIntegrationTest.scala:651) at kafka.api.AdminClientIntegrationTest.$anonfun$testCreatePartitions$5$adapted(AdminClientIntegrationTest.scala:601) at scala.collection.immutable.List.foreach(List.scala:305) at kafka.api.AdminClientIntegrationTest.testCreatePartitions(AdminClientIntegrationTest.scala:601)