gtk4: update 4.16.1 -> 4.16.3

gtk4: update 4.16.1 -> 4.16.3

Overview of Changes in 4.16.3, 04-10-2024
=========================================

* GtkScrolledWindow
 - Fix criticals in size allocation code

* GtkFileChooser
 - Fix a crash in the portal code

* GtkPicture
 - Avoid unnecessary resizes

* GtkVideo
 - Make dmabufs work without GL

* Accessibility:
 - Always realized non-widget accessibles

* Wayland:
 - Improve settings portal handling
 - Improve fallback for cursor themes
 - Sync default values for settings with schema defaults

* Translation updates:
 Brazilian Portuguese
 Galician
 Swedish

Overview of Changes in 4.16.2, 25-09-2024
=========================================

* GtkLabel:
 - Fix centered text in RTL

* Gsk:
 - Speed up some Vulkan operations
 - Improve startup speed by avoiding initialization
   of GL and Vulkan in most cases
 - Reduce critials at startup to warnings
 - Fix a crash on startup with some Vulkan drivers
 - Fix a big texture leak in NGL

* Gdk:
 - Speed up memory format conversions

* Wayland:
 - Be more careful with mimetypes during DND or copy-paste

* Tools:
 - builder-tool: Improve conversion of boxes

* Translation updates:
 Brazilian Portuguese
 Bulgarian
 Catalan
 Chinese (China)
 Georgian
 German
 Hebrew
 Indonesian
 Persian
 Polish
 Portuguese
 Slovenian
 Spanish
 Turkish
 Ukrainian

Signed-off-by: Markus Volk <f_l_k@t-online.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>