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

plugins/php-imap/vendor/symfony/clock/ClockInterface.php

@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Clock;
+
+use Psr\Clock\ClockInterface as PsrClockInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface ClockInterface extends PsrClockInterface
+{
+    public function sleep(float|int $seconds): void;
+
+    public function withTimeZone(\DateTimeZone|string $timezone): static;
+}