Updates the JDK to use the latest Unicode 15, which also updates the ICU4J along with it (8284844: Update ICU4J to Version 72.1). The corresponding CSR has already been approved.
------------- Commit messages: - 8284842: Update Unicode Data Files to Version 15.0.0 Changes: https://git.openjdk.org/jdk/pull/10839/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10839&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8284842 Stats: 1125 lines in 29 files changed: 821 ins; 33 del; 271 mod Patch: https://git.openjdk.org/jdk/pull/10839.diff Fetch: git fetch https://git.openjdk.org/jdk pull/10839/head:pull/10839 PR: https://git.openjdk.org/jdk/pull/10839
