<i18n dev> RFR: 8287180: Update IANA Language Subtag Registry to Version 2022-08-08

[Justin Lu]

Problem: IANA Language subtag registry is outdated
Fix: Updated from version 2022-03-02 to 2022-08-08 -> [IANA registry](https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry)

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Commit messages:
 - Update date for IANA test
 - Merge branch 'master' into 8287180-IANA
 - update IANA

Changes: https://git.openjdk.org/jdk/pull/10546/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10546&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8287180
  Stats: 16 lines in 2 files changed: 14 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/10546.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10546/head:pull/10546

PR: https://git.openjdk.org/jdk/pull/10546