Remove the vendor directory in .gitignore as these dependencies are needed for php-imap

plugins/php-imap/vendor/illuminate/contracts/Support/Arrayable.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Illuminate\Contracts\Support;
+
+/**
+ * @template TKey of array-key
+ * @template TValue
+ */
+interface Arrayable
+{
+    /**
+     * Get the instance as an array.
+     *
+     * @return array<TKey, TValue>
+     */
+    public function toArray();
+}