Your requirements could not be resolved to an installable set of packages. Problem 1 - sebastian/diff[4.0.0, ..., 4.0.1] require php ^7.3 -> your php version (8.2.15) does not satisfy that requirement. - friendsofphp/php-cs-fixer v3.38.2 requires symfony/process ^5.4 || ^6.0 -> found symfony/process[v5.4.0, ..., v5.4.35, v6.0.0, ..., v6.4.3] but it conflicts with your root composer.json require (^7.0.3). - Root composer.json requires phpunit/phpunit ^11.0.3 -> satisfiable by phpunit/phpunit[11.0.3]. - slam/php-cs-fixer-extensions v3.10.0 requires friendsofphp/php-cs-fixer ^3.38.2 -> satisfiable by friendsofphp/php-cs-fixer[v3.38.2, ..., v3.49.0]. - friendsofphp/php-cs-fixer[v3.39.0, ..., v3.49.0] require sebastian/diff ^4.0 || ^5.0 -> satisfiable by sebastian/diff[4.0.0, ..., 4.0.5, 5.0.0, ..., 5.1.0]. - You can only install one version of a package, so only one of these can be installed: sebastian/diff[4.0.0, ..., 4.0.5, 5.0.0, ..., 5.1.0, 6.0.0]. - phpunit/phpunit 11.0.3 requires sebastian/diff ^6.0 -> satisfiable by sebastian/diff[6.0.0]. - Root composer.json requires slam/php-cs-fixer-extensions ^3.10 -> satisfiable by slam/php-cs-fixer-extensions[v3.10.0].

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