In 3.1, replace deprecated useSingleTopicForFixedDelays() with useSingleTopicForSameIntervals().
https://github.com/spring-projects/spring-boot/blob/8c3bf88abaf605acabcd0d8e03ce91db726a2c4b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/kafka/KafkaAutoConfiguration.java#L165
Comment From: Abhijeetmishr
@garyrussell @philwebb @wilkinsona I have raised PR for the above issue #34504.
Comment From: scottfrederick
Closing in favor of #34504.