Fix use ordering.

src/Http/ServerRequest.php

@@ -18,8 +18,8 @@ use ArrayAccess;
 use BadMethodCallException;
 use Cake\Core\Configure;
 use Cake\Http\ServerRequestFactory;
-use Cake\Network\Session;
 use Cake\Network\Exception\MethodNotAllowedException;
+use Cake\Network\Session;
 use Cake\Utility\Hash;
 use InvalidArgumentException;
 use Psr\Http\Message\ServerRequestInterface;