fix cs

Author: DavidBadura

tests/fixed/enum.php renamed to tests/fixed/Suit.php

@@ -1,9 +1,13 @@
 <?php
 
+declare(strict_types=1);
+
+namespace Tests\Fixed;
+
 enum Suit: string
 {
     case Hearts = 'H';
     case Diamonds = 'D';
     case Clubs = 'C';
     case Spades = 'S';
-}
+}