Update Deserializes.php - Add DateTime format

Add additional DateTime Format returned from Amazon ProductFeeV0 API

src/Traits/Deserializes.php

@@ -20,6 +20,7 @@ trait Deserializes
 
     protected static array $validDatetimeFormats = [
         'Y-m-d\TH:i:s\Z',
+        'Y-m-d\TH:i:s.u\Z',
         DATE_ATOM,
         'Y-m-d',
     ];