Update to Unicode 17 / CLDR 48

[linusg]

Release notes:

• https://www.unicode.org/versions/Unicode17.0.0/
• https://cldr.unicode.org/downloads/cldr-48

test262 PRs:

• Add tests for Unicode 17 property escapes tc39/test262#4572
• Add tests for Unicode 17 identifiers and unicodeSets tc39/test262#4573

There's a PR in quickjs-ng: quickjs-ng/quickjs#1229

[bellard]

done