libxfce4windowing: upgrade 4.20.5 -> 4.20.6

Changelog:
=============
- Add xfw_screen_get_monitor_for_gdk_monitor()
- Add missing "New in 4.20.6" docs section
- Add missing chain up to parent class
- I18n: Update po/LINGUAS list
- XfwMonitor: Fix (xdg_)output_done event handling
- XfwMonitor: Fix typo and initialize class member
- Ignore workarea/workspace count mismatches
- Fix incorrect max to clamp workspace number to
- Implement workspace geometry for wayland
- Add XfwWorkspace:geometry property
- Fix missing workspace signal connections in test program
- Add test program to enumerate workspaces
- Fix X11 workspace geometry and layout getting out of date
- Fix incorrect col & row ordering for Wayland workspace coordinates
- Fix width -> height typo for XfwWorkspaceX11 geometry
- Add fallback monitor on X11 if XRandR doesn't report anything
- Don't depend on wayland-scanner and wayland-protocols
- XfwWindowWayland: Connect to XfwScreen::monitor-added
- XfwWindowWayland: Connect to XfwScreen::monitor-removed
- Translation Updates:
  Georgian, Kazakh, Korean, Lao, Russian, Turkish

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-xfce/recipes-xfce/libxfce4windowing/libxfce4windowing_4.20.6.bb

@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=435ed639f84d4585d93824e7da3d85da"
 DEPENDS = "xfce4-dev-tools-native glib-2.0 gtk+3"
 
 XFCEBASEBUILDCLASS = "meson"
-SRC_URI[sha256sum] = "6b4e19a66db650c9c8a88f00bbf266e9ced0070b7dbc0aaeea05be0fc6a2eb4d"
+SRC_URI[sha256sum] = "2d06b6a567c965afbca1a51419fc728fd83bd0460e30ab62c34564d5e0aac9e3"
 
 inherit features_check gobject-introspection gtk-doc xfce vala gettext