icu: bump to 74.2

icu: bump to 74.2

ICU 74.2 maintenance release

Release date: 2023-12-13

ICU 74.2 updates to CLDR 44.1 locale data. These are maintenance releases for ICU 74 and CLDR 44, with limited sets of bug fixes and no API or structural changes.
* The CLDR bug fix relevant for ICU is for some formatting patterns that erroneously had two adjacent space characters. These are coalesced into one. (CLDR-17233)
* List of tickets fixed in ICU 74.2
    * Important: DateFormat.getInstanceForSkeleton() and the DateTimePatternGenerator sometimes used the wrong patterns because they failed to use/inherit certain data. (ICU-22575 — CLDR 44 had removed some redundant data that ICU relied on.)

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