[libadwaita/wip/exalm/bundle-gtk] flatpak: Bundle gtk

[Alexander Mikhaylenko <alexm src gnome org>]

commit 9e9ee6bf64340d9af4f2bb22f58a2876a65397e4
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Nov 13 17:45:43 2021 +0500

    flatpak: Bundle gtk
    
    GTK in the master SDK is completely broken now:
    
     - https://gitlab.gnome.org/GNOME/gtk/-/issues/4431
     - https://gitlab.gnome.org/GNOME/gtk/-/issues/4443
     - https://gitlab.gnome.org/GNOME/gtk/-/issues/4444
    
    This should be reverted once at least 4444 is fixed.

 demo/org.gnome.Adwaita1.Demo.json | 11 +++++++++++
 1 file changed, 11 insertions(+)
---
diff --git a/demo/org.gnome.Adwaita1.Demo.json b/demo/org.gnome.Adwaita1.Demo.json
index b2074e33..05e28cc3 100644
--- a/demo/org.gnome.Adwaita1.Demo.json
+++ b/demo/org.gnome.Adwaita1.Demo.json
@@ -34,6 +34,17 @@
         }
       ]
     },
+    {
+      "name": "gtk",
+      "buildsystem": "meson",
+      "sources": [
+        {
+          "type": "git",
+          "url": "https://gitlab.gnome.org/GNOME/gtk.git";,
+          "commit" : "e0c97e6fccc1f66dabddc21a6e8821347429e157"
+        }
+      ]
+    },
     {
       "name": "libadwaita",
       "buildsystem": "meson",