Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/framework ^5.0 -> satisfiable by silverstripe/framework[5.0.0-alpha1, ..., 5.x-dev]. - silverstripe/framework[5.0.0-alpha1, ..., 5.x-dev] require php ^8.1 -> your php version (8.0.30) does not satisfy that requirement.

Process completed with exit code 2.

Your workflow is using a version of actions/cache that is scheduled for deprecation, actions/cache@v1. Please update your workflow to use either v3 or v4 of actions/cache to avoid interruptions. Learn more: https://github.blog/changelog/2024-12-05-notice-of-upcoming-releases-and-breaking-changes-for-github-actions/#actions-cache-v1-v2-and-actions-toolkit-cache-package-closing-down