added countries support expanded for ISO 3166 standard merged in new support

Modules/Countries/Rules/ValidCountryCode.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Modules\Countries\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class ValidCountryCode implements ValidationRule
+{
+    public function __construct(private readonly bool $activeOnly = true)
+    {
+    }
+
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        (new ValidIso3166CountryCode($this->activeOnly, 'alpha2'))->validate($attribute, $value, $fail);
+    }
+}