Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires shopware/platform 6.2.x@dev, it is satisfiable by shopware/platform[v6.2.0-RC1, ..., 6.2.x-dev] from composer repo (https://repo.packagist.org) but shopware/platform[dev-master, dev-93767a6e3abbe0a979c9a8d12d41978986daee3a, 6.3.x-dev (alias of dev-master)] from path repo (platform) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo's packages are not installable. See https://getcomposer.org/repoprio for details and assistance. Problem 2 - Root composer.json requires ocramius/package-versions 1.4.0 -> satisfiable by ocramius/package-versions[1.4.0]. - ocramius/package-versions 1.4.0 requires composer-plugin-api ^1.0.0 -> found composer-plugin-api[2.6.0] but it does not match the constraint.

Process completed with exit code 1.

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/