Version bump for netbootxyz/debian-squash:sparky-stable-gui new tag 7.7-d38c17d0

Author: netboot-ci

endpoints.yml

@@ -160,7 +160,7 @@ endpoints:
     flavor: xfce-min
     kernel: sparky-stable-mingui
   sparky-stable-gui:
-    path: /debian-squash/releases/download/7.6-d38c17d0/
+    path: /debian-squash/releases/download/7.7-d38c17d0/
     files:
     - filesystem.squashfs
     - initrd