[libadwaita] (3 commits) Non-fast-forward update to branch wip/exalm/update-icons

[Adrien Plazas <aplazas src gnome org>]

The branch 'wip/exalm/update-icons' 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:

  b538a72... icons: Update adw-expander-arrow-symbolic
  24a8a5a... demo: Update icons

Commits added to the branch:

  a236e25... avatar: Use auto cleanups for Cairo types (*)
  c858375... icons: Update adw-expander-arrow-symbolic
  959f434... demo: Update icons

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