Update .php_cs.dist.php

Author: Nielsvanpach

.php_cs.dist.php

@@ -12,7 +12,7 @@
 
 return (new PhpCsFixer\Config())
     ->setRules([
-        '@PSR2' => true,
+        '@PSR12' => true,
         'array_syntax' => ['syntax' => 'short'],
         'ordered_imports' => ['sort_algorithm' => 'alpha'],
         'no_unused_imports' => true,