Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ^8.1 but your php version (7.4.33) does not satisfy that requirement. Problem 2 - Root composer.json requires phpunit/phpunit ^10.4 -> satisfiable by phpunit/phpunit[10.4.0, 10.4.1]. - phpunit/phpunit[10.4.0, ..., 10.4.1] require php >=8.1 -> your php version (7.4.33) does not satisfy that requirement.

The process '/usr/local/bin/composer' failed with exit code 2

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, ramsey/composer-install@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/