RFR: 8334418: Update IANA Language Subtag Registry to Version 2024-06-14

[Justin Lu]

Please review this PR, which is a trivial update of the IANA subtag registry to version 2024-06-14. 
Announcement: https://mm.icann.org/pipermail/ietf-languages-announcements/2024-June/000092.html

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Commit messages:
 - init

Changes: https://git.openjdk.org/jdk/pull/19757/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19757&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8334418
  Stats: 7 lines in 2 files changed: 4 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/19757.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19757/head:pull/19757

PR: https://git.openjdk.org/jdk/pull/19757