The python 'future' module provides a 'builtins' package
to emulate the py3 'builtins' modules. If installed, the
unit tests that reference builtins.__import__ fail because
the future 'builtins' is imported and it is missing __import__.
Use ansible.compat.six.moves.builtins instead of importing
'builtins' or __builtin__
Fixes#14996