Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ^8.0 but your php version (7.4.33) does not satisfy that requirement.

Process completed with exit code 2.

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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/