use the same set of tracks for database automatic tests
Summary:
use the same set of tracks for database automatic tests
part of a rewrite of storage of genre, composer and lyricist in database
to allow building views from them
Test Plan: automatic tests are OK
Reviewers: Elisa, astippich
Reviewed By: Elisa, astippich
Maniphest Tasks: T7883
Differential Revision: https://phabricator.kde.org/D12532