[gdk-pixbuf] (11 commits) Non-fast-forward update to branch ebassi/gi-docgen

[Emmanuele Bassi <ebassi src gnome org>]

The branch 'ebassi/gi-docgen' 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:

  e7b834f... docs: Fix the deprecation annotation for AlphaMode
  d623c99... Fix inclusion guards for gdk-pixbuf-features.h
  0894c2e... Port gdk-pixbuf to gi-docgen
  fe8fea4... docs: Port to the gi-docgen syntax and style
  f5d975e... docs: Generate the GdkPixdata API reference
  17e85c5... ci: Update reference and dist jobs
  295bfcd... ci: Update the Docker image
  2d70bbf... ci: Use the appropriate meson incantation

Commits added to the branch:

  22e12c8... Update Chinese (China) translation (*)
  83dac3a... Update Italian translation (*)
  9b4e624... Update Korean translation (*)
  ba0b35c... Update British English translation (*)
  6dcfdc8... docs: Fix the deprecation annotation for AlphaMode
  af28805... Fix inclusion guards for gdk-pixbuf-features.h
  08d0944... Port gdk-pixbuf to gi-docgen
  1576bdd... docs: Port to the gi-docgen syntax and style
  6384e09... docs: Generate the GdkPixdata API reference
  6175d31... ci: Update the Docker image
  9a796c3... ci: Update reference and dist jobs

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