Your requirements could not be resolved to an installable set of packages. Problem 1 - phpunit/phpunit[dev-main, 11.0.0, ..., 11.3.x-dev] require php >=8.2 -> your php version (8.0.30) does not satisfy that requirement. - phpunit/phpunit[10.0.0, ..., 10.5.x-dev] require php >=8.1 -> your php version (8.0.30) does not satisfy that requirement. - phpunit/phpunit 11.4.x-dev is an alias of phpunit/phpunit dev-main and thus requires it to be installed too. - Root composer.json requires phpunit/phpunit ^11.0 || ^10.0 -> satisfiable by phpunit/phpunit[10.0.0, ..., 10.5.x-dev, 11.0.0, ..., 11.4.x-dev (alias of dev-main)].

Process completed with exit code 2.

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