Proto scala testkig start config (#2203)

* chore: add start(config) to protobuf KalixTestKit

* fix scaladoc complaint

sdk/scala-sdk-protobuf-testkit/src/main/scala/kalix/scalasdk/testkit/KalixTestKit.scala

@@ -8,6 +8,7 @@ import scala.concurrent.ExecutionContext
 
 import akka.actor.ActorSystem
 import akka.stream.Materializer
+import com.typesafe.config.Config
 import kalix.scalasdk.{ Kalix, Principal }
 import kalix.javasdk.testkit.{ KalixTestKit => JTestKit }
 import kalix.javasdk.testkit.KalixTestKit.Settings.{ EventingSupport => JEventingSupport }
@@ -25,7 +26,7 @@ import kalix.javasdk.impl.MessageCodec
  *
  * <p>Requires Docker for starting a local instance of the Kalix Runtime.
  *
- * <p>Create a KalixTestKit with an [[Kalix]] service descriptor, and then [[KalixTestKit.start]] the testkit before
+ * <p>Create a KalixTestKit with an [[Kalix]] service descriptor, and then [[KalixTestKit.start()*]] the testkit before
  * testing the service with gRPC or HTTP clients. Call [[KalixTestKit.stop]] after tests are complete.
  */
 object KalixTestKit {
@@ -104,6 +105,15 @@ class KalixTestKit private (delegate: JTestKit) {
  this
  }
 
+ /**
+ * @param config
+ * @return
+ */
+ def start(config: Config): KalixTestKit = {
+ delegate.start(config)
+ this
+ }
+
  /**
  * Get an Akka gRPC client for the given service name. The same client instance is shared for the test. The lifecycle
  * of the client is managed by the SDK and it should not be stopped by user code.