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

plugins/stripe-php/lib/Util/DefaultLogger.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Stripe\Util;
+
+/**
+ * A very basic implementation of LoggerInterface that has just enough
+ * functionality that it can be the default for this library.
+ */
+class DefaultLogger implements LoggerInterface
+{
+    /** @var int */
+    public $messageType = 0;
+
+    /** @var null|string */
+    public $destination;
+
+    public function error($message, array $context = [])
+    {
+        if (\count($context) > 0) {
+            throw new \Stripe\Exception\BadMethodCallException('DefaultLogger does not currently implement context. Please implement if you need it.');
+        }
+
+        if (null === $this->destination) {
+            \error_log($message, $this->messageType);
+        } else {
+            \error_log($message, $this->messageType, $this->destination);
+        }
+    }
+}