fix cs

Author: Nyholm

src/mcp-sdk/tests/Server/JsonRpcHandlerTest.php

@@ -26,7 +26,7 @@
 #[CoversClass(JsonRpcHandler::class)]
 class JsonRpcHandlerTest extends TestCase
 {
-    #[TestDox("Make sure a single notification can be handled by multiple handlers.")]
+    #[TestDox('Make sure a single notification can be handled by multiple handlers.')]
     public function testHandleMultipleNotifications(): void
     {
         $handlerA = $this->getMockBuilder(NotificationHandlerInterface::class)
@@ -56,7 +56,7 @@ public function testHandleMultipleNotifications(): void
         );
     }
 
-    #[TestDox("Make sure a single request can NOT be handled by multiple handlers.")]
+    #[TestDox('Make sure a single request can NOT be handled by multiple handlers.')]
     public function testHandleMultipleRequests(): void
     {
         $handlerA = $this->getMockBuilder(RequestHandlerInterface::class)