Your requirements could not be resolved to an installable set of packages. Problem 1 - orchestra/testbench[v9.0.0, ..., v9.0.3] require phpunit/phpunit ^10.5 || ^11.0.1 -> found phpunit/phpunit[10.5.0, ..., 10.5.16, 11.0.1, ..., 11.0.9] but it conflicts with your root composer.json require (^9.5). - Root composer.json requires orchestra/testbench 9.* -> satisfiable by orchestra/testbench[v9.0.0, v9.0.1, v9.0.2, v9.0.3].

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/.