[gnome-characters] (8 commits) Non-fast-forward update to branch wip/piotrdrag/update-copyright

[Daiki Ueno <dueno src gnome org>]

The branch 'wip/piotrdrag/update-copyright' 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:

  a8776f7... window: Update copyright year in the about dialog

Commits added to the branch:

  1df3026... character: Remove critical warning when closing dialog (*)
  bdf7f77... character: Utilize lexical binding rather than instance var (*)
  9f3dced... Release 3.28.0 (*)
  0177888... Update Chinese (China) translation (*)
  e671733... Update Romanian translation (*)
  0b5d657... Update Brazilian Portuguese translation (*)
  0087795... libgc: Fix crasher with some GCC configurations (*)
  c6212c5... window: Update copyright year in the about dialog

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