[autoupdate] Update ICU from "ICU 74.1" to "ICU 74.2"

[isc-adang]

As of 2023-12-11T19:06:58Z, a new version of ICU has been released.

Release Information (sourced from https://github.com/unicode-org/icu/releases/tag/release-74-2)

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)
• 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)

For details, please see https://icu.unicode.org/download/74.

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