RFR: 8341164: Update boot JDK to 23

[Michael Strauß]

On Wed, 2 Oct 2024 17:09:59 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

> Update the boot JDK to version 23. 
> 
> Since Gradle 8.9 does not support JDK 23, it is necessary to upgrade Gradle to the latest release, version 8.10.2, which supports JDK 23.
> It is advised to upgrade directly to Gradle 8.10.2 rather than 8.10. refer to [the release notes](https://docs.gradle.org/8.10.2/release-notes.html)
> 
> No modifications to the Gradle build script are required for upgrading the Gradle version.

Gradle should be upgraded with the `wrapper` task (see [Upgrading your build from Gradle 8.x to the latest](https://docs.gradle.org/current/userguide/upgrading_version_8.html)):

gradle wrapper --gradle-version 8.10.2


Doing this will ensure that `gradlew` and `gradlew.bat` are up-to-date with the latest version, which is not the case for this PR.

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PR Comment: https://git.openjdk.org/jfx/pull/1589#issuecomment-2389461416