[devhelp] flatpak: build Amtk from git master

[Sébastien Wilmet <swilmet src gnome org>]

commit d010166397f116ff28de3e2f308d769d037735e2
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Nov 20 00:03:39 2020 +0100

    flatpak: build Amtk from git master
    
    Amtk has been ported to Meson.

 flatpak/org.gnome.Devhelp.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/flatpak/org.gnome.Devhelp.yml b/flatpak/org.gnome.Devhelp.yml
index aec0cb7a..1fc1f24f 100644
--- a/flatpak/org.gnome.Devhelp.yml
+++ b/flatpak/org.gnome.Devhelp.yml
@@ -36,11 +36,11 @@ cleanup:
 
 modules:
   - name: amtk
+    buildsystem: meson
     run-tests: true
     sources:
-      - type: archive
-        url: https://download.gnome.org/sources/amtk/5.2/amtk-5.2.0.tar.xz
-        sha256: 820545bb4cf87ecebc2c3638d6b6e58b8dbd60a419a9b43cf020124e5dad7078
+      - type: git
+        url: https://gitlab.gnome.org/GNOME/amtk.git
 
   - name: devhelp
     buildsystem: meson