temp/gtk+3.0: replace at-spi2-atk/atk with at-spi2-core (MR 3274)

Fix for:
  missing depend(s): atk-dev

Related: https://gitlab.alpinelinux.org/alpine/aports/-/commit/926ab65be5c376ea66bbf36c039a3c8e3969c301

temp/gtk+3.0/APKBUILD

 # Forked from Alpine to apply Purism's patches for responsivness
 pkgname=gtk+3.0
 pkgver=9999_git20210602
-pkgrel=2
+pkgrel=3
 # pureos/byzantium branch
 _commit="f05e4021ed82bfbabf566398d0511b6745a5745e"
 pkgdesc="The GTK+ Toolkit (v3)"
@@ -16,7 +16,7 @@ depends="shared-mime-info gtk-update-icon-cache"
 replaces="gtk+"
 
 depends_dev="
-	atk-dev
+	at-spi2-core-dev
 	gdk-pixbuf-dev
 	glib-dev
 	libepoxy-dev
@@ -38,7 +38,6 @@ makedepends="
 	libice-dev
 	tiff-dev
 	zlib-dev
-	at-spi2-atk-dev
 	cairo-dev
 	fontconfig-dev
 	pango-dev