[jdk11u-dev] RFR: 8313702: Update IANA Language Subtag Registry to Version 2023-08-02

[Andrew Lu]

I backport this for parity with 11.0.24-oracle.

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Commit messages:
 - Backport 62e6dfafc81a1bffb10943a961a030449534b51f

Changes: https://git.openjdk.org/jdk11u-dev/pull/2700/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2700&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8313702
  Stats: 12 lines in 2 files changed: 9 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2700.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2700/head:pull/2700

PR: https://git.openjdk.org/jdk11u-dev/pull/2700