Merge pull request #98 from jakubvojacek/jakubvojacek-patch-1

Fix mb_stripos offset parameter for php 8.1

Author: Naktibalda

src/Constraint/Page.php

@@ -25,7 +25,7 @@ public function __construct($string, $uri = '')
     protected function matches($other) : bool
     {
         $other = $this->normalizeText($other);
-        return mb_stripos($other, $this->string, null, 'UTF-8') !== false;
+        return mb_stripos($other, $this->string, 0, 'UTF-8') !== false;
     }
 
     /**