[gnome-music] (4 commits) Non-fast-forward update to branch wip/mschraal/type-checking

[Marinus Schraal <mschraal src gnome org>]

The branch 'wip/mschraal/type-checking' 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:

  18c057d... CI: Add static type checking pass
  9a60a38... coresong: Add static typing
  d5a4895... grltrackerwrapper: Cleanup timeout handling
  6053746... grltrackerwrapper: Add static type checking

Commits added to the branch:

  778b22a... CI: Add static type checking pass
  598dd35... coresong: Add static typing
  97f8db7... grltrackerwrapper: Cleanup timeout handling
  d4f5ad8... grltrackerwrapper: Add static type checking