[meld] (15 commits) Non-fast-forward update to branch windows-fixes

[Kai Willadsen <kaiw src gnome org>]

The branch 'windows-fixes' 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:

  58ae26a... settings: Handle missing GNOME desktop schemas for font set

Commits added to the branch:

  2ab3376... Update (or drop) the Docker image used by Flatpak job (*)
  53349c2... Closes: https://gitlab.gnome.org/GNOME/meld/-/issues/694 (*)
  b11ed16... Update German translation (*)
  b339d71... Merge branch 'fluxbox_lmb_fix' into 'master' (*)
  5f49c76... Merge branch 'barthalion/gnome-runtime-images-quay' into 'm (*)
  bb3ed6c... CI: Update lint + test stage to use a non-flatpak runner (*)
  5243da3... CI: Install pip for requirement handling (*)
  8e444e1... CI: Fix pip install for root user (*)
  d49d9d1... CI: Also install git (*)
  7253cb3... CI: Install Meld requirements (*)
  78bae2e... filediff: Fix a minor flake8 complaint (*)
  1b508dd... Update test + lint requirements (*)
  943576b... Merge branch 'ci-fixes' into 'master' (*)
  a94df20... settings: Handle missing GNOME desktop schemas for font set
  01f1617... CI: Update mingw packages

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