[gedit/gnome-3-36] snap: build the corresponding gtksourceview stable serie

[Sebastien Bacher <sbacher src gnome org>]

commit 43df33116fb59561b9dd991a0afb31a0d62390d0
Author: Sebastien Bacher <seb128 ubuntu com>
Date:   Tue Apr 6 22:15:50 2021 +0200

    snap: build the corresponding gtksourceview stable serie

 build-aux/snap/snapcraft.yaml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/build-aux/snap/snapcraft.yaml b/build-aux/snap/snapcraft.yaml
index ae1864ea3..b98040802 100644
--- a/build-aux/snap/snapcraft.yaml
+++ b/build-aux/snap/snapcraft.yaml
@@ -71,6 +71,7 @@ parts:
   gtksourceview:
     source: https://gitlab.gnome.org/GNOME/gtksourceview.git
     source-type: git
+    source-branch: gtksourceview-4-6
     plugin: meson
     meson-parameters:
       - --prefix=/usr