[jdk11u-dev] RFR: 8308021: Update IANA Language Subtag Registry to Version 2023-05-11

[Andrew Lu]

I backport this for parity with 11.0.24-oracle.

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Commit messages:
 - Backport b96339f5e38c2c0e2f3d894d77d29554052cb1f1

Changes: https://git.openjdk.org/jdk11u-dev/pull/2684/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2684&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8308021
  Stats: 20 lines in 2 files changed: 17 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2684.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2684/head:pull/2684

PR: https://git.openjdk.org/jdk11u-dev/pull/2684