Update dependency org.apache.kafka:kafka-clients to v3.9.0 (#30)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

data-generator/build.gradle.kts

@@ -19,7 +19,7 @@ dependencies {
     implementation(project(":common:models"))
 
     // Kafka
-    implementation("org.apache.kafka:kafka-clients:3.8.0")
+    implementation("org.apache.kafka:kafka-clients:3.9.0")
 
     // Avro and Schema Registry
     implementation("org.apache.avro:avro:1.12.0")