Log Message:
ristretto: update to 0.12.4

Change log:

0.12.4 (2022-12-16)
======
- Dependency Changes:
  - GLib >= 2.56.0

- Appearance Changes:
  - thumbnailer: Increase thumbnail sizes (#81)

- Code Refactoring:
  - build: Let xdt-depends.m4 macros set GLib macros
  - flatpak: Update D-Bus permissions after changing file manager method
  - flatpak: Updates from Flathub
  - Remove duplicated RsttoMainWindow:device-scale property

- Bug Fixes:
  - use-thunar-properties: Add & improve comments (!37)
  - thumbnailer: Add a warning if D-Bus proxy creation failed
  - Allow Xfconf initialization to fail (#19)
  - thumbnailer: Add missing sanity checks
  - Use a better-known bus name and object path for D-Bus proxy (#95, !36)
  - Properly update iterator when browsing a list containing invalid files (#94)
  - thumbnailer: Remove invalid files after processing thumbnail queue (#94)

- Translation Updates:
  Kazakh, Korean, Occitan (post 1500), Polish, Portuguese