Your requirements could not be resolved to an installable set of packages. Problem 1 - silverstripe/recipe-cms 6.x-dev requires silverstripe/cms 6.x-dev -> satisfiable by silverstripe/cms[6.x-dev] from composer repo (https://repo.packagist.org) but silverstripe/cms is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - silverstripe/installer 6.x-dev requires silverstripe/recipe-cms 6.x-dev -> satisfiable by silverstripe/recipe-cms[6.x-dev]. - Root composer.json requires silverstripe/installer 6.x-dev -> satisfiable by silverstripe/installer[6.x-dev].

Process completed with exit code 2.

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab, shivammathur/setup-php@1a18b2267f80291a81ca1d33e7c851fe09e7dfc4, actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8, actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/