Fix transport arguments of McpController

Author: chr-hertel

src/mcp-bundle/src/Controller/McpController.php

@@ -40,7 +40,7 @@ public function handle(Request $request): Response
             $this->httpMessageFactory->createRequest($request),
             $this->responseFactory,
             $this->streamFactory,
-            $this->logger ?? new NullLogger(),
+            logger: $this->logger,
         );
 
         return $this->httpFoundationFactory->createResponse(