<i18n dev> RFR: 8318322: Update IANA Language Subtag Registry to Version 2023-10-16

[Justin Lu]

This change updates the IANA subtag registry to the update released on 2023-10-16.

Announcement -> https://mm.icann.org/pipermail/ietf-languages-announcements/2023-October/000089.html

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Commit messages:
 - init

Changes: https://git.openjdk.org/jdk/pull/16227/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16227&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8318322
  Stats: 53 lines in 2 files changed: 50 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/16227.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16227/head:pull/16227

PR: https://git.openjdk.org/jdk/pull/16227