Start building against Spring Kafka 3.0.9 snapshots

See gh-36187

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1426,7 +1426,7 @@ bom {
 			]
 		}
 	}
-	library("Spring Kafka", "3.0.8") {
+	library("Spring Kafka", "3.0.9-SNAPSHOT") {
 		group("org.springframework.kafka") {
 			modules = [
 				"spring-kafka",