Your requirements could not be resolved to an installable set of packages. Problem 1 - orchestra/testbench[v6.0.0, ..., v6.9.0] require phpunit/phpunit ^8.4 || ^9.0 -> found phpunit/phpunit[8.4.0, ..., 8.5.x-dev, 9.0.0, ..., 9.6.x-dev] but it conflicts with your root composer.json require (^11.2.9). - orchestra/testbench[v6.10.0, ..., v6.12.1] require phpunit/phpunit ^8.4 || ^9.3 -> found phpunit/phpunit[8.4.0, ..., 8.5.x-dev, 9.3.0, ..., 9.6.x-dev] but it conflicts with your root composer.json require (^11.2.9). - orchestra/testbench[v6.13.0, ..., v6.21.1] require phpunit/phpunit ^8.4 || ^9.3.3 -> found phpunit/phpunit[8.4.0, ..., 8.5.x-dev, 9.3.3, ..., 9.6.x-dev] but it conflicts with your root composer.json require (^11.2.9). - orchestra/testbench[v6.22.0, ..., 6.x-dev] require phpunit/phpunit ^8.5.21 || ^9.5.10 -> found phpunit/phpunit[8.5.21, ..., 8.5.x-dev, 9.5.10, ..., 9.6.x-dev] but it conflicts with your root composer.json require (^11.2.9). - orchestra/testbench[v7.0.0, ..., 7.x-dev] require phpunit/phpunit ^9.5.10 -> found phpunit/phpunit[9.5.10, ..., 9.6.x-dev] but it conflicts with your root composer.json require (^11.2.9). - orchestra/testbench[v8.0.0, ..., 8.x-dev] require php ^8.1 -> your php version (8.0.30) does not satisfy that requirement. - orchestra/testbench[v9.0.0, ..., 9.x-dev] require php ^8.2 -> your php version (8.0.30) does not satisfy that requirement. - Root composer.json requires orchestra/testbench ^6.0|^7.0|^8.0|^9.0 -> satisfiable by orchestra/testbench[v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev, v9.0.0, ..., 9.x-dev].

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. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/