[gnome-usage] flatpak: Update libgtop url to point to gitlab

[Felipe Borges <felipeborges src gnome org>]

commit 783efa639f706ebe0ce8f13c4a40a3a45ceed003
Author: Felipe Borges <felipeborges gnome org>
Date:   Mon Feb 19 17:01:42 2018 +0100

    flatpak: Update libgtop url to point to gitlab
    
    since the gitlab migration, libgtop and usage now live under
    gitlab.gnome.org

 org.gnome.Usage.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/org.gnome.Usage.json b/org.gnome.Usage.json
index 983d18c..e5a07a7 100644
--- a/org.gnome.Usage.json
+++ b/org.gnome.Usage.json
@@ -31,7 +31,7 @@
             "sources": [
                 {
                     "type": "git",
-                    "url": "git://git.gnome.org/libgtop"
+                    "url": "https://gitlab.gnome.org/gnome/libgtop";
                 }
             ]
         },
@@ -42,7 +42,7 @@
             "sources": [
                 {
                     "type": "git",
-                    "url": "git://git.gnome.org/gnome-usage"
+                    "url": "https://gitlab.gnome.org/gnome/gnome-usage";
                 }
             ]
         }