Bump plugin stripe-php from 10.5.0 to 16.4.0 and update links

plugins/stripe-php/lib/RelatedObject.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Stripe;
+
+/**
+ * @property string $id Unique identifier for the event.
+ * @property string $type
+ * @property string $url
+ */
+class RelatedObject
+{
+    public $id;
+    public $type;
+    public $url;
+}