KAFKA-10251: increase timeout for consuming records (#10228)

Bump the `pollUntilAtLeastNumRecords` timeout from 15s to 30s

Reviewers: Anna Sophie Blee-Goldman <ableegoldman@apache.org>

core/src/test/scala/integration/kafka/api/TransactionsBounceTest.scala

@@ -32,6 +32,7 @@ import scala.jdk.CollectionConverters._
 import scala.collection.mutable
 
 class TransactionsBounceTest extends IntegrationTestHarness {
+  private val consumeRecordTimeout = 30000
   private val producerBufferSize =  65536
   private val serverMessageMaxBytes =  producerBufferSize/2
   private val numPartitions = 3
@@ -106,7 +107,7 @@ class TransactionsBounceTest extends IntegrationTestHarness {
       while (numMessagesProcessed < numInputRecords) {
         val toRead = Math.min(200, numInputRecords - numMessagesProcessed)
         trace(s"$iteration: About to read $toRead messages, processed $numMessagesProcessed so far..")
-        val records = TestUtils.pollUntilAtLeastNumRecords(consumer, toRead)
+        val records = TestUtils.pollUntilAtLeastNumRecords(consumer, toRead, waitTimeMs = consumeRecordTimeout)
         trace(s"Received ${records.size} messages, sending them transactionally to $outputTopic")
 
         producer.beginTransaction()
@@ -134,7 +135,7 @@ class TransactionsBounceTest extends IntegrationTestHarness {
 
     val verifyingConsumer = createConsumerAndSubscribe("randomGroup", List(outputTopic), readCommitted = true)
     val recordsByPartition = new mutable.HashMap[TopicPartition, mutable.ListBuffer[Int]]()
-    TestUtils.pollUntilAtLeastNumRecords(verifyingConsumer, numInputRecords).foreach { record =>
+    TestUtils.pollUntilAtLeastNumRecords(verifyingConsumer, numInputRecords, waitTimeMs = consumeRecordTimeout).foreach { record =>
       val value = TestUtils.assertCommittedAndGetValue(record).toInt
       val topicPartition = new TopicPartition(record.topic(), record.partition())
       recordsByPartition.getOrElseUpdate(topicPartition, new mutable.ListBuffer[Int])