Routine update to IANA subtag registry data with [latest data](https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry). Version is bumped to 2025-08-25.
------------- Commit messages: - init Changes: https://git.openjdk.org/jdk/pull/28612/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28612&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8362428 Stats: 59 lines in 2 files changed: 53 ins; 0 del; 6 mod Patch: https://git.openjdk.org/jdk/pull/28612.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/28612/head:pull/28612 PR: https://git.openjdk.org/jdk/pull/28612
