Let's update the list of authors/maintainers accordingly to the
libosinfo's gitlab group members[0].

The list has been put in alphabetical order on purpose.

[0]: https://gitlab.com/groups/libosinfo/-/group_members



Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>