[devhelp] flatpak: build Amtk from an archive

[Sébastien Wilmet <swilmet src gnome org>]

commit a55c1de1bebbaec14207aa528d7b1142b37264c2
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Sep 11 21:10:51 2020 +0200

    flatpak: build Amtk from an archive
    
    That way the flatpak for Devhelp will not break when Amtk git master
    will be ported to Meson (which is planned to happen really soon, the
    branch is already ready).
    
    Once Amtk is fully ported to Meson, then the flatpak for Devhelp can
    build Amtk from git again.

 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 99e246c0..aec0cb7a 100644
--- a/flatpak/org.gnome.Devhelp.yml
+++ b/flatpak/org.gnome.Devhelp.yml
@@ -38,9 +38,9 @@ modules:
   - name: amtk
     run-tests: true
     sources:
-      - type: git
-        url: https://gitlab.gnome.org/GNOME/amtk.git
-        branch: master
+      - type: archive
+        url: https://download.gnome.org/sources/amtk/5.2/amtk-5.2.0.tar.xz
+        sha256: 820545bb4cf87ecebc2c3638d6b6e58b8dbd60a419a9b43cf020124e5dad7078
 
   - name: devhelp
     buildsystem: meson