Update Boot JDK to 18.0.2. Tested build on all platforms and full test run on MacOS Catalina.
------------- Commit messages: - 8291588: Update boot JDK to 18.0.2 Changes: https://git.openjdk.org/jfx/pull/857/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=857&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8291588 Stats: 11 lines in 2 files changed: 0 ins; 0 del; 11 mod Patch: https://git.openjdk.org/jfx/pull/857.diff Fetch: git fetch https://git.openjdk.org/jfx pull/857/head:pull/857 PR: https://git.openjdk.org/jfx/pull/857
