[vala] (2 commits) Non-fast-forward update to branch wip/gtk4

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/gtk4' 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:

  31e9393... vapi: Add unstable bindings for gtk+-4.0 3.89+
  a196ad9... Follow upstream library merge

Commits added to the branch:

  0c51fbe... vapi: Update GIR-based bindings (*)
  eaf9029... vapi: Add unstable bindings for gtk+-4.0 3.89+

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