Suppress Spring Kafka deprecation warning

See gh-34441

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/kafka/KafkaAutoConfiguration.java

@@ -149,6 +149,7 @@ public class KafkaAutoConfiguration {
 	@Bean
 	@ConditionalOnProperty(name = "spring.kafka.retry.topic.enabled")
 	@ConditionalOnSingleCandidate(KafkaTemplate.class)
+	@SuppressWarnings("deprecation")
 	public RetryTopicConfiguration kafkaRetryTopicConfiguration(KafkaTemplate<?, ?> kafkaTemplate) {
 		KafkaProperties.Retry.Topic retryTopic = this.properties.getRetry().getTopic();
 		RetryTopicConfigurationBuilder builder = RetryTopicConfigurationBuilder.newInstance()