feat: add rules

Author: lotyp

src/RuleSets/DefaultSet.php

@@ -139,6 +139,10 @@ public function rules(): array
                 'import_constants' => true,
             ],
             'self_static_accessor' => true,
+
+            'no_useless_else' => true,
+            'no_useless_return' => true,
+
         ], $this->rules);
     }
 }