Your requirements could not be resolved to an installable set of packages. Problem 1 - phpunit/phpunit[10.0.0, ..., 10.5.10] require myclabs/deep-copy ^1.10.1 -> found myclabs/deep-copy[1.10.1, ..., 1.11.1] but the package is fixed to 1.10.0 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command. - Root composer.json requires phpunit/phpunit ^10.0 -> satisfiable by phpunit/phpunit[10.0.0, ..., 10.5.10]. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Process completed with exit code 2.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.