Your requirements could not be resolved to an installable set of packages.
Problem 1
- orchestra/workbench[v8.10.0, ..., 8.x-dev] require orchestra/canvas ^8.11.9 -> found orchestra/canvas[v8.11.9, 8.x-dev] but it conflicts with your root composer.json require (^9.1).
- orchestra/testbench[v8.27.0, ..., 8.x-dev] require orchestra/workbench ^8.10 -> satisfiable by orchestra/workbench[v8.10.0, 8.x-dev].
- Root composer.json requires orchestra/testbench ^8.27 -> satisfiable by orchestra/testbench[v8.27.0, 8.x-dev].