[Web] Update PHPMailer

data/web/inc/lib/vendor/composer/autoload_psr4.php

@@ -8,6 +8,7 @@ $baseDir = dirname($vendorDir);
 return array(
     'RobThree\\Auth\\' => array($vendorDir . '/robthree/twofactorauth/lib'),
     'PhpMimeMailParser\\' => array($vendorDir . '/php-mime-mail-parser/php-mime-mail-parser/src'),
+    'PHPMailer\\PHPMailer\\' => array($vendorDir . '/phpmailer/phpmailer/src'),
     'MatthiasMullie\\PathConverter\\' => array($vendorDir . '/matthiasmullie/path-converter/src'),
     'MatthiasMullie\\Minify\\' => array($vendorDir . '/matthiasmullie/minify/src'),
     'Html2Text\\' => array($vendorDir . '/soundasleep/html2text/src'),