Fix PlaintextConsumerTest.testMultiConsumerSessionTimeoutOnClose

org.opentest4j.AssertionFailedError: Did not get valid assignment for partitions HashSet(topic1-2, topic1-4, topic-1, topic-0, topic1-5, topic1-1, topic1-0, topic1-3). Instead, got ArrayBuffer(Set(topic1-0, topic-0, topic-1), Set(), Set(topic1-1, topic1-5))
	at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:38)
	at org.junit.jupiter.api.Assertions.fail(Assertions.java:134)
	at kafka.api.AbstractConsumerTest.validateGroupAssignment(AbstractConsumerTest.scala:286)
	at kafka.api.PlaintextConsumerTest.runMultiConsumerSessionTimeoutTest(PlaintextConsumerTest.scala:1865)
	at kafka.api.PlaintextConsumerTest.testMultiConsumerSessionTimeoutOnClose(PlaintextConsumerTest.scala:1277)

[2023-12-13 15:33:33,180] ERROR [Consumer clientId=ConsumerTestConsumer, groupId=my-test] GroupHeartbeatRequest failed due to error: INVALID_REQUEST (org.apache.kafka.clients.consumer.internals.HeartbeatRequestManager:376)
[2023-12-13 15:33:33,180] ERROR [Consumer clientId=ConsumerTestConsumer, groupId=my-test] Member JQ_e0S5FTzKnYyStB3aBrQ with epoch 0 transitioned to FATAL state (org.apache.kafka.clients.consumer.internals.MembershipManagerImpl:456)
[2023-12-13 15:33:33,212] ERROR [daemon-consumer-assignment]: Error due to (kafka.api.AbstractConsumerTest$ConsumerAssignmentPoller:139)
org.apache.kafka.common.errors.InvalidRequestException: RebalanceTimeoutMs must be provided in first request.
[2023-12-13 15:33:39,196] WARN [Consumer clientId=ConsumerTestConsumer, groupId=my-test] consumer poll timeout has expired. This means the time between subsequent calls to poll() was longer than the configured max.poll.interval.ms, which typically implies that the poll loop is spending too much time processing messages. You can address this either by increasing max.poll.interval.ms or by reducing the maximum size of batches returned in poll() with max.poll.records. (org.apache.kafka.clients.consumer.internals.HeartbeatRequestManager:188)
[2023-12-13 15:33:39,200] WARN [Consumer clientId=ConsumerTestConsumer, groupId=my-test] consumer poll timeout has expired. This means the time between subsequent calls to poll() was longer than the configured max.poll.interval.ms, which typically implies that the poll loop is spending too much time processing messages. You can address this either by increasing max.poll.interval.ms or by reducing the maximum size of batches returned in poll() with max.poll.records. (org.apache.kafka.clients.consumer.internals.HeartbeatRequestManager:188)