python: Changing class declaration from old to new-style type
Resolves:
https://pagure.io/SSSD/sssd/issue/3517
Signed-off-by: Lukas Slebodnik <lslebodn@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>