Fix and update Composer autoload

vendor/symfony/contracts/HttpClient/Exception/DecodingExceptionInterface.php

@@ -1,23 +0,0 @@
-<?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\Contracts\HttpClient\Exception;
-
-/**
- * When a content-type cannot be decoded to the expected representation.
- *
- * @author Nicolas Grekas <p@tchwork.com>
- *
- * @experimental in 1.1
- */
-interface DecodingExceptionInterface extends ExceptionInterface
-{
-}