[gnome-music/wip/jfelder/mediaart-meson] flatpak: Use meson build system for libmediaart

[Jean Felder <jfelder src gnome org>]

commit bb95092ac1dcdbdac905515009184d27ad791c6a
Author: Jean Felder <jfelder src gnome org>
Date:   Sat May 22 19:49:41 2021 +0200

    flatpak: Use meson build system for libmediaart
    
    Autotools build system has been removed.

 org.gnome.Music.json | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/org.gnome.Music.json b/org.gnome.Music.json
index cdf890794..640b85d57 100644
--- a/org.gnome.Music.json
+++ b/org.gnome.Music.json
@@ -40,6 +40,7 @@
         "subprojects/shared-modules/lua5.3/lua-5.3.5.json",
         {
             "name": "libmediaart",
+            "buildsystem": "meson",
             "sources": [
                 {
                     "type": "git",