feat: use auto python interpreter

[PACordonnier]

Which issue(s) this PR fixes

Fixes #277

Additional comments

What we had 'auto_legacy' :

Detects the target OS platform, distribution, and version, then consults a table listing the correct Python interpreter and path for each platform/distribution/version. If an entry is found, and /usr/bin/python is absent, uses the discovered interpreter (and path). If an entry is found, and /usr/bin/python is present, uses /usr/bin/python and issues a warning. This exception provides temporary compatibility with previous versions of Ansible that always defaulted to /usr/bin/python, so if you have installed Python and other dependencies at /usr/bin/python on some hosts, Ansible will find and use them with this setting. If no entry is found, or the listed Python is not present on the target host, searches a list of common Python interpreter paths and uses the first one found; also issues a warning that future installation of another Python interpreter could alter the one chosen.

What we have after this PR
auto(default in 2.12)

Detects the target OS platform, distribution, and version, then consults a table listing the correct Python interpreter and path for each platform/distribution/version. If an entry is found, uses the discovered interpreter. If no entry is found, or the listed Python is not present on the target host, searches a list of common Python interpreter paths and uses the first one found; also issues a warning that future installation of another Python interpreter could alter the one chosen.

Agreements

• I hereby declare this contribution to be licensed under the Apache License Version 2.0, January 2004.
• I hereby agree to grant TOSIT a copyright license to use my contributions.