update libraries.

.php-cs-fixer.php

@@ -0,0 +1,16 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+    ->exclude('vendor')
+    ->in(__DIR__)
+;
+
+$config = new PhpCsFixer\Config();
+return $config->setRules([
+        '@Symfony' => true,
+        '@DoctrineAnnotation' => true,
+        'array_indentation' => true,
+        'array_syntax' => ['syntax' => 'short'],
+    ])
+    ->setFinder($finder)
+;