Update connect-runtime, kafka, ... to 3.9.0 (#534)

Author: scala-steward

project/Dependencies.scala

@@ -6,7 +6,7 @@ object Dependencies {
     val Scala3    = "3.3.4"
     val Scala213  = "2.13.15"
     val Scala212  = "2.12.20"
-    val Kafka     = "3.8.1"
+    val Kafka     = "3.9.0"
     val Slf4j     = "1.7.36"
     val ScalaTest = "3.2.19"
   }