icu: bump to 72.1

icu: bump to 72.1

It updates to Unicode 15, including new characters, scripts, emoji, and corresponding API constants. It also updates to CLDR 42 locale data with various additions and corrections.

ICU 72 adds technology preview implementations for person name formatting, as well as for a new version of message formatting based on a proposed draft Unicode specification.

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>