Update copyright years.

gcc/options-urls-cc-gen.awk

-#  Copyright (C) 2023 Free Software Foundation, Inc.
+#  Copyright (C) 2023-2024 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the

gcc/regenerate-opt-urls.py

 #!/usr/bin/env python3
 
-# Copyright (C) 2023 Free Software Foundation, Inc.
+# Copyright (C) 2023-2024 Free Software Foundation, Inc.
 #
 # Script to regenerate FOO.opt.urls files for each FOO.opt in the
 # source tree.