GTK4 4.12.0

These bindings have been generated from the following library versions:

• glib: 2.83.0
• cairo: 1.18.2
• gdk-pixbuf: 2.42.9
• graphene: 1.10.8
• pango: 1.54.0
• gtk: 4.12.0
• gtk4-layer-shell: 1.0.4