[gnome-software] (9 commits) Non-fast-forward update to branch wip/hughsie/packagekit-thread-safety

[Richard Hughes <rhughes src gnome org>]

The branch 'wip/hughsie/packagekit-thread-safety' 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:

  1544f82... Add mutexes to protect access to PkClient and PkTask

Commits added to the branch:

  5531a7d... Update Finnish translation (*)
  0fecd06... Update Indonesian translation (*)
  d6abd84... Update Polish translation (*)
  289653b... Update Brazilian Portuguese translation (*)
  4b5ffd1... Use the SPDX-License-Identifier in all source files (*)
  15421af... trivial: Remove unused vim source tags (*)
  0f4909c... Use '#pragma once' to avoid a lot of boilerplate (*)
  2ad5731... Fix the self tests when using new versions of flatpak (*)
  40e7d11... Add mutexes to protect access to PkClient and PkTask

(*) This commit already existed in another branch; no separate mail sent