[jdk17u-dev] RFR: 8313702: Update IANA Language Subtag Registry to Version 2023-08-02

[Goetz Lindenmaier]

I backport this for parity with 17.0.12-oracle.

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Depends on: https://git.openjdk.org/jdk17u-dev/pull/2373

Commit messages:
 - Backport 1da82a34b14189814e45a93c68620ccb51427111

Changes: https://git.openjdk.org/jdk17u-dev/pull/2374/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2374&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/jdk17u-dev/pull/2374.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2374/head:pull/2374

PR: https://git.openjdk.org/jdk17u-dev/pull/2374