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ICU-22922 Integrate CLDR 47 release alpha1, part 2, data files
ICU-23056 cldr-48-alpha2
ICU-23343 Unicode 18 beta UCA & Unihan
ICU-23057 Integrate CLDR 48 release beta3
ICU-23307 Manually apply the changes from unicode-org/cldr#5297
ICU-12738 svn BOM fix