Adding two more valid characters for dk domain

Author: krish-damani

src/Hostname.php

@@ -1676,7 +1676,7 @@ class Hostname extends AbstractValidator
         'CN'  => 'Hostname/Cn.php',
         'COM' => 'Hostname/Com.php',
         'DE'  => [1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'],
-        'DK'  => [1 => '/^[\x{002d}0-9a-zäéöüø]{1,63}$/iu'],
+        'DK'  => [1 => '/^[\x{002d}0-9a-zäåæéöøü]{1,63}$/iu'],
         'EE'  => [1 => '/^[\x{002d}0-9a-zäõöüšž]{1,63}$/iu'],
         'ES'  => [1 => '/^[\x{002d}0-9a-zàáçèéíïñòóúü·]{1,63}$/iu'],
         'EU'  => [1 => '/^[\x{002d}0-9a-zà-öø-ÿ]{1,63}$/iu',