test: refactor StrictRules/FormatRulesTest

Author: kenjis

tests/system/Validation/FormatRulesTest.php

@@ -18,14 +18,16 @@
 
 /**
  * @internal
+ *
+ * @no-final
  */
-final class FormatRulesTest extends CIUnitTestCase
+class FormatRulesTest extends CIUnitTestCase
 {
     public const ALPHABET     = 'abcdefghijklmnopqrstuvwxyzABCDEFGHLIJKLMNOPQRSTUVWXYZ';
     public const ALPHANUMERIC = 'abcdefghijklmnopqrstuvwxyzABCDEFGHLIJKLMNOPQRSTUVWXYZ0123456789';
 
-    private Validation $validation;
-    private array $config = [
+    protected Validation $validation;
+    protected array $config = [
         'ruleSets' => [
             Rules::class,
             FormatRules::class,