[calls] doap: Change URL of homepage

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit e4097112e76786d334d74fa86b9d4991a6f06b35
Author: Evangelos Ribeiro Tzaras <evangelos tzaras puri sm>
Date:   Wed Jul 14 11:07:05 2021 +0200

    doap: Change URL of homepage

 calls.doap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/calls.doap b/calls.doap
index 2b37cf98..d7d0c41b 100644
--- a/calls.doap
+++ b/calls.doap
@@ -10,7 +10,7 @@
   <shortdesc>A phone call dialer</shortdesc>
   <description>Calls is a dialer for phone calls, initially PSTN calls
   but eventually other systems like SIP in future.</description>
-  <homepage rdf:resource="https://source.puri.sm/Librem5/calls"; />
+  <homepage rdf:resource="https://gitlab.gnome.org/GNOME/calls"; />
   <license rdf:resource="http://usefulinc.com/doap/licenses/gpl"; />
 
   <programming-language>C</programming-language>