All Minio versions support

[SHUstri]

Hello.
Thank you for your work.
Could you please help me to understand how your ansible code handles situation when old Miniio versions (like RELEASE.2020-03-09T18-26-53Z) expect MINIO_ACCESS_KEY/MINIO_SECRET_KEY env variables and don't support MINIO_ROOT_USER/MINIO_ROOT_PASSWORD?