main/gtk+3.0: depend on gobject-introspection

GTK 3.0 requires xlib-2.0 which is provided by gobject-introspection.

Link: !81193 (comment 489318) Fixes: #16978 (closed)

main/gtk+3.0/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: team/gnome <newbyte@postmarketos.org>
 pkgname=gtk+3.0
 pkgver=3.24.49
-pkgrel=0
+pkgrel=1
 pkgdesc="The GTK+ Toolkit (v3)"
 url="https://www.gtk.org/"
 install="$pkgname.post-deinstall"
@@ -18,7 +18,11 @@ subpackages="
 	$pkgname-lang
 	gtk-update-icon-cache:icon_cache
 	"
-depends="shared-mime-info gtk-update-icon-cache"
+depends="
+	gobject-introspection
+	gtk-update-icon-cache
+	shared-mime-info
+	"
 depends_dev="
 	gdk-pixbuf-dev
 	glib-dev