Your requirements could not be resolved to an installable set of packages. Problem 1 - squizlabs/php_codesniffer[3.0.0, ..., 3.9.0] require ext-simplexml * -> it is missing from your system. Install or enable PHP's simplexml extension. - wp-coding-standards/wpcs[2.1.0, ..., 2.3.0] require squizlabs/php_codesniffer ^3.3.1 -> satisfiable by squizlabs/php_codesniffer[3.3.1, ..., 3.9.0]. - Root composer.json requires wp-coding-standards/wpcs ^2.1 -> satisfiable by wp-coding-standards/wpcs[2.1.0, ..., 2.3.0]. To enable extensions, verify that they are enabled in your .ini files: - /etc/php/7.4/cli/php.ini - /etc/php/7.4/cli/conf.d/10-opcache.ini - /etc/php/7.4/cli/conf.d/10-pdo.ini - /etc/php/7.4/cli/conf.d/20-calendar.ini - /etc/php/7.4/cli/conf.d/20-ctype.ini - /etc/php/7.4/cli/conf.d/20-curl.ini - /etc/php/7.4/cli/conf.d/20-exif.ini - /etc/php/7.4/cli/conf.d/20-ffi.ini - /etc/php/7.4/cli/conf.d/20-fileinfo.ini - /etc/php/7.4/cli/conf.d/20-ftp.ini - /etc/php/7.4/cli/conf.d/20-gettext.ini - /etc/php/7.4/cli/conf.d/20-iconv.ini - /etc/php/7.4/cli/conf.d/20-json.ini - /etc/php/7.4/cli/conf.d/20-phar.ini - /etc/php/7.4/cli/conf.d/20-posix.ini - /etc/php/7.4/cli/conf.d/20-readline.ini - /etc/php/7.4/cli/conf.d/20-shmop.ini - /etc/php/7.4/cli/conf.d/20-sockets.ini - /etc/php/7.4/cli/conf.d/20-sysvmsg.ini - /etc/php/7.4/cli/conf.d/20-sysvsem.ini - /etc/php/7.4/cli/conf.d/20-sysvshm.ini - /etc/php/7.4/cli/conf.d/20-tokenizer.ini You can also run `php --ini` in a terminal to see which files are used by PHP in CLI mode. Alternatively, you can run Composer with `--ignore-platform-req=ext-simplexml` to temporarily ignore these required extensions.

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Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: shivammathur/setup-php@1.3.7. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.