With the ansible-core 2.20 release, Ansible is deprecating the ansible.module_utils.six module, in which we rely on for some Python 2 compatibility.

My suggestion is that we completely remove the compatibility with Python 2 and prepare for an ansible-freeipa 2.x release.

This will seriously impact the future releases, even if RHEL 8 supports Python 3, as the platform python is 3.6, and anything before 3.7 has many limitations, comparing to current Python versions.