[NetworkManager-pptp] appdata: Add extends for new gnome-control-center name

[Lubomir Rintel <lkundrak src gnome org>]

commit 3a4fb0c6501e70f738236c62e0298191a49a6a0a
Author: Jeremy Bicha <jeremy bicha canonical com>
Date:   Thu Mar 3 11:33:25 2022 +0100

    appdata: Add extends for new gnome-control-center name
    
    The .desktop was renamed for GNOME 42 [1].
    
    [1] https://gitlab.gnome.org/GNOME/gnome-control-center/-/commit/acd59aec6560620
    
    https://gitlab.gnome.org/GNOME/NetworkManager-pptp/-/merge_requests/11

 appdata/network-manager-pptp.metainfo.xml.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/appdata/network-manager-pptp.metainfo.xml.in b/appdata/network-manager-pptp.metainfo.xml.in
index 05a19db..964cd98 100644
--- a/appdata/network-manager-pptp.metainfo.xml.in
+++ b/appdata/network-manager-pptp.metainfo.xml.in
@@ -5,6 +5,7 @@
   <project_license>GPL-2.0+</project_license>
   <metadata_license>CC0-1.0</metadata_license>
   <extends>nm-connection-editor.desktop</extends>
+  <extends>org.gnome.Settings.desktop</extends>
   <extends>gnome-control-center.desktop</extends>
   <_name>PPTP VPN client</_name>
   <_summary>Client for PPTP virtual private networks</_summary>