Make all constructor signatures multiline

[MAILPOET-3732]

lib/API/JSON/SuccessResponse.php

@@ -5,7 +5,11 @@ namespace MailPoet\API\JSON;
 class SuccessResponse extends Response {
   public $data;
 
-  public function __construct($data = [], $meta = [], $status = self::STATUS_OK) {
+  public function __construct(
+      $data = [],
+      $meta = [],
+      $status = self::STATUS_OK
+  ) {
     parent::__construct($status, $meta);
     $this->data = $data;
   }