Your requirements could not be resolved to an installable set of packages.
Problem 1
- orchestra/testbench[v9.1.0, ..., 9.x-dev] require orchestra/workbench ^9.1 -> satisfiable by orchestra/workbench[v9.1.0, v9.2.0, v9.3.0, 9.x-dev].
- orchestra/testbench[v9.0.0, ..., 9.0.x-dev] require orchestra/workbench ^9.0 -> satisfiable by orchestra/workbench[v9.0.0, ..., 9.x-dev].
- orchestra/workbench v9.0.0 requires orchestra/canvas ^9.0 -> found orchestra/canvas[v9.0.0, ..., 9.x-dev] but it conflicts with your root composer.json require (^8.0).
- orchestra/workbench[v9.1.0, ..., v9.2.0] require orchestra/canvas ^9.0.2 -> found orchestra/canvas[v9.0.2, ..., 9.x-dev] but it conflicts with your root composer.json require (^8.0).
- orchestra/workbench[v9.3.0, ..., 9.x-dev] require orchestra/canvas ^9.1 -> found orchestra/canvas[v9.1.0, v9.1.1, 9.x-dev] but it conflicts with your root composer.json require (^8.0).
- Root composer.json requires orchestra/testbench ^9.0 -> satisfiable by orchestra/testbench[v9.0.0, ..., 9.x-dev].