Overwrite Ubuntu Focal repo with Debian Buster mimicking the zerotiers own installer
Using the fingerprint in the rpm_key module requires Ansible 2.9. Updated meta file to reflect this requirement.
release_repo.status needs to be checked after distribution.
If ansible_distribution is Ubuntu the role will check if there is a dedicated repo matching the ansible_distribution_release. If this is not the case but the ansible_distribution_major_version is 18, the repo for the bionic release will be used.