RFE: Use environment variables for token with ansible.cfg

[myllynen]

Currently the ansible.cfg written to the disk in the build directory contains the authentication token. This could be possible to avoid by using environment variables ensuring that no credential is stored on-disk at any point of the build process.

Remotely related: https://developers.redhat.com/articles/2025/01/23/strategies-eliminating-ansible-hardcoded-credentials

Thanks.

[sean-m-sullivan]

adding this to the readme on the role, need more time to update and make it so its standard.