[jdk11u-dev] RFR: 8304761: Update IANA Language Subtag Registry to Version 2023-03-22

[Andrew Lu]

I backport this for parity with 11.0.24-oracle.

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Commit messages:
 - Backport 3b88b2a9f88f47b850bd975a76c4a7050ccd8fd0

Changes: https://git.openjdk.org/jdk11u-dev/pull/2673/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2673&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8304761
  Stats: 170 lines in 2 files changed: 155 ins; 1 del; 14 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2673.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2673/head:pull/2673

PR: https://git.openjdk.org/jdk11u-dev/pull/2673