ICU-22325: tag icu main @fb0f3620... for use in CLDR

ICU-22325: tag icu main @56850c9a42... for use in CLDR

ICU-22325: tag icu main @281a2a77ec... for use in CLDR

ICU-22325: tag icu main @c7e967c456... for use in CLDR

ICU-22389 Cherry-pick CLDR 43.1 data from main to maint-73 (#2495)

ICU-22373 Export segmentation dictionaries

(cherry picked from commit 6c05042)

ICU-22221 update cldr-icu instructions, and ICU tag for integration

ICU-22221: tag icu maint-73 @80f94a636e... for use in CLDR

ICU-22221: tag icu maint-73 @f4687fc25a... for use in CLDR

ICU-22327 Update tzdata to 2023a