The currently deployed PHP (not Rust) version refers to old PHPUnit version.
No composer.lock file present. Updating dependencies to latest instead of installing from lock file. See https://getcomposer.org/install for more information. Loading composer repositories with package information Updating dependencies Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^6.4 -> satisfiable by phpunit/phpunit[6.4.0, ..., 6.5.14]. - phpunit/phpunit[6.4.0, ..., 6.5.14] require php ^7.0 -> your php version (8.2.24) does not satisfy that requirement.