Your requirements could not be resolved to an installable set of packages.
Problem 1
- orchestra/testbench[v9.1.0, ..., v9.1.2] require laravel/framework ^11.7 -> satisfiable by laravel/framework[v11.7.0, ..., v11.10.0].
- orchestra/testbench[v9.0.3, ..., v9.0.4] require laravel/framework ^11.1 -> satisfiable by laravel/framework[v11.1.0, ..., v11.10.0].
- orchestra/testbench[v9.0.0, ..., v9.0.2] require laravel/framework ^11.0 -> satisfiable by laravel/framework[v11.0.0, ..., v11.10.0].
- laravel/framework[v11.0.0, ..., v11.10.0] require symfony/var-dumper ^7.0 -> found symfony/var-dumper[v7.0.0, ..., v7.1.1] but it conflicts with your root composer.json require (^6.0).
- Root composer.json requires orchestra/testbench ^9.0 -> satisfiable by orchestra/testbench[v9.0.0, ..., v9.1.2].