Which cron job may modify the code in the vendor/magento folder? My magento version is community 2.3. And the only task into crontab is "php bin/magento cron:run". I have neither configured "php update/cron.php" nor "php bin/magento setup:cron:run". And the folder "update" was removed. No composer update was executed. But some files are changed into the vendor/magento. The modification found consists of adding "escapeHtmlAttr" function in some files. So what can change these files?