Fix license header in script

scripts/unicode.py

@@ -19,13 +19,13 @@
 
 import fileinput, re, os, sys
 
-preamble = '''// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+preamble = '''// Copyright 2012-2024 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
+// https://www.rust-lang.org/policies/licenses.
 //
 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.