Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires neos/flow-development-collection 8.4.x-dev -> satisfiable by neos/flow-development-collection[8.4.x-dev]. - neos/flow-development-collection 8.4.x-dev requires php ^8.2 -> your php version (8.1.29) does not satisfy that requirement. Problem 2 - Root composer.json requires neos/behat 8.4.x-dev -> satisfiable by neos/behat[8.4.x-dev]. - neos/behat 8.4.x-dev requires php ^8.2 -> your php version (8.1.29) does not satisfy that requirement. Problem 3 - neos/flow-development-collection 8.4.x-dev requires php ^8.2 -> your php version (8.1.29) does not satisfy that requirement. - neos/neos-development-collection dev-build requires neos/flow-development-collection 8.4.x-dev -> satisfiable by neos/flow-development-collection[8.4.x-dev]. - Root composer.json requires neos/neos-development-collection dev-build as 8.4.x-dev -> satisfiable by neos/neos-development-collection[dev-build].

Process completed with exit code 2.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2, actions/cache@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.