jobs: Unsloppy gtk

jobs.yml

@@ -220,10 +220,9 @@ gstreamer1.0:
   url: https://source.puri.sm/Librem5/gstreamer1.0.git
   branch: 'master'
 gtk:
-  url: https://source.puri.sm/Librem5/gtk.git
+  url: https://source.puri.sm/Librem5/debs/gtk.git
   dists: ['buster']
-  branch: pureos/sloppy
-  sloppy: true
+  branch: 'pureos/amber-phone'
 haegtesse:
   url: https://source.puri.sm/Librem5/haegtesse.git
   archs: ['aarch64', 'armhf', 'amd64']