[jdk21u-dev] RFR: 8327631: Update IANA Language Subtag Registry to Version 2024-03-07

[Goetz Lindenmaier]

One of the required updates of meta information.

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Commit messages:
 - Backport d5b95a0ed38b10ed9f51d20255e06eb38fdd8b82

Changes: https://git.openjdk.org/jdk21u-dev/pull/490/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=490&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327631
  Stats: 80 lines in 2 files changed: 77 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/490.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/490/head:pull/490

PR: https://git.openjdk.org/jdk21u-dev/pull/490