[jfx17u] RFR: 8355641: Change JavaFX release version to 17.0.16 in jfx17u

[Johan Vos]

Start work for 17.0.16

-------------

Commit messages:
 - Bump version to 17.0.16

Changes: https://git.openjdk.org/jfx17u/pull/233/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx17u&pr=233&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8355641
  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jfx17u/pull/233.diff
  Fetch: git fetch https://git.openjdk.org/jfx17u.git pull/233/head:pull/233

PR: https://git.openjdk.org/jfx17u/pull/233