Update Unicode data license

Signed-off-by: Laslo Hunhold <dev@frign.de>

data/LICENSE

diff --git a/data/LICENSE b/data/LICENSE
index 85d0d58..e216c7f 100644
--- a/data/LICENSE
+++ b/data/LICENSE
@@ -13,7 +13,7 @@
 
 COPYRIGHT AND PERMISSION NOTICE
 
-Copyright © 1991-2022 Unicode, Inc. All rights reserved.
+Copyright © 1991-2023 Unicode, Inc. All rights reserved.
 Distributed under the Terms of Use in https://www.unicode.org/copyright.html.
 
 Permission is hereby granted, free of charge, to any person obtaining