Log Message:
gtk4: updated to 4.14.3

Overview of Changes in 4.14.3, 18-04-2024
=========================================

* GtkShortcutManager:
 - Track the propagation phase of added controllers

* Accessibility:
 - Implement GtkAccessibleRange for scrollbars

* X11:
 - Fix some confusing debug messages
 - Drop a no-longer-relevant optimization that was interfering with
   getting the current window manager capabilities

* Tools:
 - Support generating pdf in gtk4-rendernode-tool

* Translation updates:
 Basque
 Brazilian Portuguese
 Georgian
 Hebrew
 Kabyle
 Persian
 Polish
 Slovenian
 Swedish
 Ukrainian