Update RouteCommand.php

[ycrao]

fix return Bad Middleware when using class string name in router.

$router->group('', function(Router $router) use ($app) {

	$router->get('/', function() use ($app) {
		$app->render('welcome', ['message' => 'some message...']);
	});
}, [ SecurityHeadersMiddleware::class ]);

then run php runway routes in terminal.

before fix:

Routes
+----------------------------------------------+--------------------+-------+----------+----------------+
| Pattern                                      | Methods            | Alias | Streamed | Middleware     |
+----------------------------------------------+--------------------+-------+----------+----------------+
| /                                            | GET, HEAD, OPTIONS |       | No       | Bad Middleware |

after fix:

+----------------------------------------------+--------------------+-------+----------+------------------------------------------------+
| Pattern                                      | Methods            | Alias | Streamed | Middleware                                     |
+----------------------------------------------+--------------------+-------+----------+------------------------------------------------+
| /                                            | GET, HEAD, OPTIONS |       | No       | SecurityHeadersMiddleware                      |