[gnome-boxes] (9 commits) Non-fast-forward update to branch housekeeping-autumn-2021

[Felipe Borges <felipeborges src gnome org>]

The branch 'housekeeping-autumn-2021' 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:

  14b1a1e... welcome-tutorial, main: Ensure type of WelcomeTutorial in m
  c778e13... shared-folders: Don't throw warning when symlink exists
  b5a5561... app: Demote collection load warning to debug message
  30a2c26... app: No need to declare a local "app" reference
  bc9a1e2... spice-display: Drop unused "spice_validate_uri"
  52a8443... app: Add runtime check for whether we are running in a Flat
  19cdd75... welcome-tutorial: Handle error when failing to load css
  8bb86e0... unattended-installer: Drop unused "device_name_to_path" met

Commits added to the branch:

  9091c68... Add Guix logo. (*)
  fa76da5... welcome-tutorial, main: Ensure type of WelcomeTutorial in m
  fbbf1d7... shared-folders: Don't throw warning when symlink exists
  82ce42a... app: Demote collection load warning to debug message
  273952f... app: No need to declare a local "app" reference
  feead3e... spice-display: Drop unused "spice_validate_uri"
  f200f78... app: Add runtime check for whether we are running in a Flat
  04c249b... welcome-tutorial: Handle error when failing to load css
  a00cb62... unattended-installer: Drop unused "device_name_to_path" met

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