Handle null values correctly in Laravel 9

Author: rawilk

src/Casts/Password.php

@@ -11,6 +11,10 @@ class Password implements CastsInboundAttributes
 {
     public function set($model, string $key, $value, array $attributes)
     {
+        if (is_null($value)) {
+            return null;
+        }
+
         if (! Hash::needsRehash($value)) {
             return $value;
         }