budgie-desktop: rebuild for mutter-7

[ci skip]

srcpkgs/budgie-desktop/patches/appsys-build.patch

@@ -0,0 +1,11 @@
+--- src/appsys/AppSystem.vala
++++ src/appsys/AppSystem.vala
+@@ -70,7 +70,7 @@ public class AppSystem : GLib.Object
+     }
+ 
+     private void signal_received(GLib.DBusConnection connection,
+-                                 string sender,
++                                 string? sender,
+                                  string object_path,
+                                  string interface_name,
+                                  string signal_name,

srcpkgs/budgie-desktop/template

@@ -1,7 +1,7 @@
 # Template file for 'budgie-desktop'
 pkgname=budgie-desktop
 version=10.5.1
-revision=3
+revision=4
 build_style=meson
 build_helper=gir
 configure_args="-Dwith-gtk-doc=false -Dwith-desktop-icons=none"