[vala/staging] gtk+-3.0: Update to 3.24.29+f9fe28ce

[Rico Tzschichholz <ricotz src gnome org>]

commit b39943ce2f7040b7c15ac57dc846bf7c1ad140a6
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed May 26 17:21:52 2021 +0200

    gtk+-3.0: Update to 3.24.29+f9fe28ce

 vapi/gtk+-3.0.vapi | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/vapi/gtk+-3.0.vapi b/vapi/gtk+-3.0.vapi
index 145a7267c..41f673f9b 100644
--- a/vapi/gtk+-3.0.vapi
+++ b/vapi/gtk+-3.0.vapi
@@ -3094,6 +3094,11 @@ namespace Gtk {
                public signal void show_hidden ();
                public signal void up_folder ();
        }
+       [CCode (cheader_filename = "gtk/gtk.h,gtk/gtk-a11y.h", type_id = 
"gtk_file_chooser_widget_accessible_get_type ()")]
+       public class FileChooserWidgetAccessible : Gtk.ContainerAccessible, Atk.Action, Atk.Component {
+               [CCode (has_construct_function = false)]
+               protected FileChooserWidgetAccessible ();
+       }
        [CCode (cheader_filename = "gtk/gtk.h", type_id = "gtk_file_filter_get_type ()")]
        public class FileFilter : GLib.InitiallyUnowned, Gtk.Buildable {
                [CCode (has_construct_function = false)]