[gnome-control-center] (3 commits) Non-fast-forward update to branch wip/snwh/icon-pixel-sizes

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'wip/snwh/icon-pixel-sizes' 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:

  48f3f95... common: fix inappropriate pixel_size values for icons  - al
  9c30baa... added dim-label class to icon in wacom properties

Commits added to the branch:

  26cb1dd... CI: use a previous Docker image (*)
  10abaf9... common: fix inappropriate pixel_size values for icons  - al
  f5e5f1f... added dim-label class to icon in wacom properties

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