Log Message:
xfce4-panel: update to 4.20.3

4.20.3 (2025-02-04)
======
- libxfce4panel: Fix ABI break
- meson-build: Update debug/optimization flag management

4.20.2 (2025-02-02)
======
- autotools-build: Get rid of maintainer mode where gdbus-codegen is
used

4.20.1 (2025-02-02)
======
- build: Bump libxfce4windowing required version to 4.20.1
- Update copyright year
- meson-build: Don't add 'lib' prefix in static lib name
- meson-build: Simplify feature opt dep management
- meson-build: Ensure xfce-revision.h was generated when using it
- build: Use VERSION_FULL intead of VERSION or PACKAGE_VERSION
- autotools-build: Fix EXTRA_DIST redefinition
- meson-build: Remove unneeded conditional
- actions: Restore dialog accept on Enter behavior
- Add meson build
- Turn some messages into warnings
- build: Migrate to xdt-gen-visibility and xdt-check-abi
- wayland: windowmenu: Hide irrelevant workspace options
- wayland: pager: Hide workspace settings
- docs: Add missing parameter to XfcePanelPlugin::hidden-event
- wayland: libxfce4panel: Set kbd interact to on-demand for popup
windows
- tasklist: Add missing workspace property initialization on Wayland
- panel: Deal with duplicated monitor models
- tasklist: Disable workspace related properties on Wayland
- prefs-dialog: Don't trust xfconf_channel_get_string_list() return
value
- libxfce4panel: Fix XfcePanelPlugin size
- Add an hidden-event signal for plugins
- Translation Updates:
  Albanian, Catalan, Chinese (China), Danish, Hungarian, Russian,
  Slovak, Vietnamese