CI builds failing

[geerlingguy]

TASK [Make the latest version of the base image available locally.] ************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Failed to import the required Python library (Docker SDK for Python: docker (Python >= 2.7) or docker-py (Python 2.6)) on fv-az129-444's Python /opt/hostedtoolcache/Python/3.9.5/x64/bin/python. Please read the module documentation and install it in the appropriate location. If the required library is installed, but Ansible is using the wrong Python interpreter, please consult the documentation on ansible_python_interpreter, for example via `pip install docker` or `pip install docker-py` (Python 2.6). The error was: No module named 'six'"}

It seems the problem could be related to the latest Docker pip release (5.0.0) requiring at least Python 3.6. But could be something else. A number of my container image build CI jobs started failing...