Apply fixes from StyleCI

Author: StyleCIBot

rector.php

@@ -22,5 +22,5 @@
         ClosureToArrowFunctionRector::class,
         ReadOnlyPropertyRector::class,
         NullToStrictStringFuncCallArgRector::class,
-        NewInInitializerRector::class
+        NewInInitializerRector::class,
     ]);