[gimp] (4 commits) Non-fast-forward update to branch wip/Jehan/artifacts-prefix

[Jehan <jehanp src gnome org>]

The branch 'wip/Jehan/artifacts-prefix' 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:

  5da0251... gitlab-ci: (Win32) add install prefix to artifacts.
  6b6ce6b... build: mask glib and pango from pre-built Win32 package for
  cbe9cff... build: (Win32 CI) cairo as dependency of GEGL.

Commits added to the branch:

  e112141... Update Polish translation (*)
  126a235... gitlab-ci: (Win32) add install prefix to artifacts.
  3da8b9c... build: mask glib and pango from pre-built Win32 package for
  94852a3... build: (Win32 CI) cairo as dependency of GEGL.

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