[gnome-builder] build: use gspell from tarball

[Christian Hergert <chergert src gnome org>]

commit 51f616890747a9563ce253817a840cc52d5229d0
Author: Christian Hergert <chergert redhat com>
Date:   Fri Aug 2 10:48:37 2019 -0700

    build: use gspell from tarball

 build-aux/flatpak/org.gnome.Builder.json | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/build-aux/flatpak/org.gnome.Builder.json b/build-aux/flatpak/org.gnome.Builder.json
index a92a9d99c..2b6c76dca 100644
--- a/build-aux/flatpak/org.gnome.Builder.json
+++ b/build-aux/flatpak/org.gnome.Builder.json
@@ -365,9 +365,9 @@
             ],
             "sources" : [
                 {
-                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/gspell.git";,
-                    "branch" : "1.8.1"
+                    "type" : "archive",
+                    "url" : "https://download.gnome.org/sources/gspell/1.8/gspell-1.8.1.tar.xz";,
+                   "sha256" : "819a1d23c7603000e73f5e738bdd284342e0cd345fb0c7650999c31ec741bbe5"
                 }
             ]
         },