[calls] metainfo: Add DBus service to "provides" tag

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 7ca0bca62ae7baaef7c292b07053f5ba43928f80
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Tue Oct 19 18:09:46 2021 +0200

    metainfo: Add DBus service to "provides" tag
    
    See
    https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#tag-provides

 data/org.gnome.Calls.metainfo.xml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/data/org.gnome.Calls.metainfo.xml b/data/org.gnome.Calls.metainfo.xml
index 480d0457..8b105fd0 100644
--- a/data/org.gnome.Calls.metainfo.xml
+++ b/data/org.gnome.Calls.metainfo.xml
@@ -49,6 +49,7 @@
         <mediatype>x-scheme-handler/tel</mediatype>
         <mediatype>x-scheme-handler/sip</mediatype>
         <mediatype>x-scheme-handler/sips</mediatype>
+        <dbus type="user">org.gnome.Calls</dbus>
     </provides>
 
     <content_rating type="oars-1.1">