Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/framework-bundle ^7.1 -> satisfiable by symfony/framework-bundle[v7.1.0, v7.1.1, v7.1.2]. - symfony/framework-bundle[v7.1.0, ..., v7.1.2] require symfony/dependency-injection ^7.1 -> found symfony/dependency-injection[v7.1.0, v7.1.1, v7.1.2] but it conflicts with your root composer.json require (^6.0). Problem 2 - sulu/sulu[2.6.0, ..., 2.6.3] require symfony/framework-bundle ^5.4 || ^6.0 -> found symfony/framework-bundle[v5.4.0, ..., v5.4.41, v6.0.0, ..., v6.4.9] but it conflicts with your root composer.json require (^7.1). - Root composer.json requires sulu/sulu ^2.6 -> satisfiable by sulu/sulu[2.6.0, 2.6.1, 2.6.2, 2.6.3].

Process completed with exit code 2.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/