Preperation for migrating from Azure DevOps with Amazon Elastic Container
Registry (AWS ECR), to GitHub Actions with GitHub Container Registry (GHCR).
DebOps tests are not currently being run, the updates to .ci/debops*.py are
best effort only.
Also
- Simplifies adding support for additional Ansible versions
- Unifies Python package versioning in CI and local test environments
- Matches Python versions tested, with those declared in setup.py
- Expands targets covered by automated Ansible tests to
- centos6, centos8
- debian9, debian11
- ubuntu1604, ubuntu2004