[gnome-backgrounds] fix build

[Jakub Steiner <jimmac src gnome org>]

commit 10f5e4e675caf96f276305cd94b33ad6544debfa
Author: Jakub Steiner <jimmac gmail com>
Date:   Thu May 5 09:50:42 2022 +0200

    fix build

 backgrounds/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/backgrounds/meson.build b/backgrounds/meson.build
index 5941c41..330e378 100644
--- a/backgrounds/meson.build
+++ b/backgrounds/meson.build
@@ -32,9 +32,9 @@ install_data(backgrounds, install_dir: backgrounddir)
 foreach metadata : [
   'adwaita.xml',
   'brush-strokes.xml',
-  'disco.xml',
   'drool.xml',
   'dune.xml',
+  'field.xml',
   'libadwaita.xml',
   'pixels.xml',
   'symbolics.xml',