[gnome-builder] build-aux: update libpanel URL

[Christian Hergert <chergert src gnome org>]

commit 359f75ea0fb95e2019bc1a62fa5cb5e963ef4cfe
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jul 27 13:01:13 2022 -0700

    build-aux: update libpanel URL

 org.gnome.Builder.Devel.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/org.gnome.Builder.Devel.json b/org.gnome.Builder.Devel.json
index ee0e443d1..13967c9be 100644
--- a/org.gnome.Builder.Devel.json
+++ b/org.gnome.Builder.Devel.json
@@ -612,7 +612,7 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://gitlab.gnome.org/chergert/libpanel.git";,
+                    "url" : "https://gitlab.gnome.org/GNOME/libpanel.git";,
                     "branch" : "main"
                 }
             ]