Fix REUSABLE_RETRY_TOPIC validation to allow multiple DLTs#4095

sobychacko merged 2 commits intospring-projects:mainspring-projects/spring-kafka:mainfrom

LeeHyungGeol:GH-3834-allow-multiple-dlts-after-reusable-topicLeeHyungGeol/spring-kafka:GH-3834-allow-multiple-dlts-after-reusable-topicCopy head branch name to clipboard