[vala/staging] gio-2.0: Update to 2.67.2+46097e9b

[Rico Tzschichholz <ricotz src gnome org>]

commit d3f6c96c4fb61cd1dad130eb180741e720c5dc70
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sat Jan 9 18:55:36 2021 +0100

    gio-2.0: Update to 2.67.2+46097e9b

 vapi/gio-2.0.vapi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/vapi/gio-2.0.vapi b/vapi/gio-2.0.vapi
index 2f9c2a1d1..0ac21c284 100644
--- a/vapi/gio-2.0.vapi
+++ b/vapi/gio-2.0.vapi
@@ -3623,7 +3623,7 @@ namespace GLib {
                [NoWrapper]
                public abstract string? get_relative_path (GLib.File descendant);
                public abstract string get_uri ();
-               public abstract string get_uri_scheme ();
+               public abstract string? get_uri_scheme ();
                [Version (since = "2.24")]
                public bool has_parent (GLib.File? parent);
                [CCode (vfunc_name = "prefix_matches")]