fix: phpstan level=5

src/Validator/Rule/Date.php

@@ -9,8 +9,6 @@ use ctiso\Validator\Rule\AbstractRule,
 
 class Date extends AbstractRule
 {
-    private $split = "\\/";
-
     public function getErrorMsg()
     { 
         return "Неверный формат даты";
@@ -21,7 +19,7 @@ class Date extends AbstractRule
         $pattern = "/^([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{4})$/";
         $matches = [];
         return (preg_match($pattern, $container->get($this->field), $matches) 
-            && checkdate($matches[2], $matches[1], $matches[3]));
+            && checkdate((int)$matches[2], (int)$matches[1], (int)$matches[3]));
     }
 }