[grilo-plugins] Non-fast-forward update to branch wip/carlosg/tracker3

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/tracker3' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  ca1e3b4... fixup! tests: Add tests for the tracker3 plugin

Commits added to the branch:

  bdfe2a7... fixup! tests: Add tests for the tracker3 plugin