This shoula already be possible as is stated here: https://docs.github.com/en/enterprise-cloud@latest/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-github-actions-settings-for-a-repository#allowing-access-to-components-in-an-internal-repository.

We will need to look into why this does not work in our organization ourselves.