RFR: 8336632: Update Gradle to 8.9 [v2]

[Ambarish Rapte]

> Gradle 8.8 released on May 31, 2024, supports JDK 22.
> On Jul 11, 2024, gradle 8.9 was released too, so we can update to the latest gradle 8.9 
> 
> This gradle update is required in order to update the boot jdk to 22.0.2.
> The changes are minimal, no source code changes were required.
> 
> This PR also includes the boot jdk update.

Ambarish Rapte has updated the pull request incrementally with one additional commit since the last revision:

  win bootjdk gha

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

Changes:
  - all: https://git.openjdk.org/jfx/pull/1539/files
  - new: https://git.openjdk.org/jfx/pull/1539/files/5f140034..a0715c34

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1539&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1539&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jfx/pull/1539.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1539/head:pull/1539

PR: https://git.openjdk.org/jfx/pull/1539