[seahorse] libhandy: Git URL moved from Purism to GNOME

[Niels De Graef <nielsdg src gnome org>]

commit a7eae2f13685d12718dc05a8987936d6cd4ca5b2
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Fri Jun 5 09:58:48 2020 +0200

    libhandy: Git URL moved from Purism to GNOME

 .gitmodules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitmodules b/.gitmodules
index f4788ba4..e0fed8ac 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "subprojects/libhandy"]
        path = subprojects/libhandy
-       url = https://source.puri.sm/Librem5/libhandy.git
+       url = https://gitlab.gnome.org/GNOME/libhandy.git