git: openjdk/jfx21u: master: 8314484: Update Gradle to 8.4

[Ambarish Rapte]

Changeset: 7f704c24
Author:    Ambarish Rapte <arapte at openjdk.org>
Date:      2023-10-30 18:08:23 +0000
URL:       https://git.openjdk.org/jfx21u/commit/7f704c24c2238f9d7bb744a20667a8c1337decc6

8314484: Update Gradle to 8.4
8314486: JavaFX build uses deprecated features that will be removed in gradle 8
8318115: Webkit build fails after gradle 8.4

Reviewed-by: kcr
Backport-of: e621d4b65222ee99b29fb2709a830d8ad70ea44f

! build.gradle
! build.properties
! gradle/UPDATING.txt
- gradle/legal/gradle.md
! gradle/wrapper/gradle-wrapper.jar
! gradle/wrapper/gradle-wrapper.properties
! gradlew