Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires orchestra/testbench ^9.0 -> satisfiable by orchestra/testbench[9.x-dev].
- orchestra/testbench 9.x-dev requires php ^8.2 -> your php version (8.1.27) does not satisfy that requirement.
Problem 2
- laravel/framework[v11.0.0, ..., 11.x-dev] require php ^8.2 -> your php version (8.1.27) does not satisfy that requirement.
- illuminate/collections[v11.0.0, ..., 11.x-dev] require php ^8.2 -> your php version (8.1.27) does not satisfy that requirement.
- Root composer.json requires illuminate/collections ^11.0 -> satisfiable by illuminate/collections[v11.0.0, ..., 11.x-dev], laravel/framework[v11.0.0, ..., 11.x-dev].