[gimp-macos-build] Update moduleset url

[Alex Samorukov <asamorukov src gnome org>]

commit eaaaedef32861dabfc1df7fbf11fa694508e6739
Author: Oleksii Samorukov <oleksii_samorukov mckinsey com>
Date:   Thu Aug 29 00:48:10 2019 +0200

    Update moduleset url

 jhbuildrc-gtk-osx-gimp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/jhbuildrc-gtk-osx-gimp b/jhbuildrc-gtk-osx-gimp
index a6334e1..8056bba 100644
--- a/jhbuildrc-gtk-osx-gimp
+++ b/jhbuildrc-gtk-osx-gimp
@@ -155,7 +155,7 @@ environ_prepend('OBJCFLAGS', "-O3")
 # os.environ["CC"] = "/usr/bin/gcc-4.0"
 
 # use our modulset
-moduleset = 'https://gitlab.gnome.org/samm-git/gtk-osx/raw/fork-test/modulesets/gtk-osx.modules'
+moduleset = 'https://gitlab.gnome.org/samm-git/gtk-osx/raw/fork-test/modulesets-stable/gtk-osx.modules'
 
 # Fix Python detection
 module_extra_env['itstool'] = { "PYTHON": os.path.expanduser("~/gtk/inst/bin/python") }