fix: cs

Author: Nyholm

src/Server/RequestHandler/PromptGetHandler.php

@@ -50,7 +50,7 @@ public function createResponse(Request $message): Response|Error
                     ],
                 ],
                 // TODO better exception
-                default => throw new \InvalidArgumentException('Unsupported PromptGet result type: ' . $result->type),
+                default => throw new \InvalidArgumentException('Unsupported PromptGet result type: '.$result->type),
             };
 
             $messages[] = [