Update Unicode data to Unicode 16.0.0

Author: petere

src/Makefile.global.in

@@ -358,7 +358,7 @@ DOWNLOAD = wget -O $@ --no-use-server-timestamps
 # Pick a release from here: <https://www.unicode.org/Public/>.  Note
 # that the most recent release listed there is often a pre-release;
 # don't pick that one, except for testing.
-UNICODE_VERSION = 15.1.0
+UNICODE_VERSION = 16.0.0
 
 # Pick a release from here: <http://cldr.unicode.org/index/downloads>
 CLDR_VERSION = 45

src/common/unicode/meson.build

@@ -1,6 +1,6 @@
 # Copyright (c) 2022-2025, PostgreSQL Global Development Group
 
-UNICODE_VERSION = '15.1.0'
+UNICODE_VERSION = '16.0.0'
 
 unicode_data = {}
 unicode_baseurl = 'https://www.unicode.org/Public/@0@/ucd/@1@'