[jfx11u] Integrated: 8240539: Upgrade gradle to version 6.3

[Ambarish Rapte]

On Fri, 7 May 2021 14:35:48 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

> jfx11u uses gradle 5.3 for build, it needs to be upgraded to gradle 6.3 same as jfx mainline.
> This PR backports three fixes:
> 
> 1. [JDK-8240539](https://bugs.openjdk.java.net/browse/JDK-8240539): Upgrade gradle to version 6.3
> 2. [JDK-8232063](https://bugs.openjdk.java.net/browse/JDK-8232063): Upgrade gradle to version 6.0 and
> 3. [JDK-8226754](https://bugs.openjdk.java.net/browse/JDK-8226754): FX build fails using gradle 5.6+ or 6
> 
> All the changes backport cleanly.

This pull request has now been integrated.

Changeset: 6ff7384f
Author:    Ambarish Rapte <arapte at openjdk.org>
URL:       https://git.openjdk.java.net/jfx11u/commit/6ff7384f63b5e1767d97db9dbfde0db661423ee9
Stats:     31 lines in 6 files changed: 17 ins; 4 del; 10 mod

8240539: Upgrade gradle to version 6.3
8232063: Upgrade gradle to version 6.0
8226754: FX build fails using gradle 5.6+ or 6

Reviewed-by: kcr
Backport-of: 9ecc10793d0e8b6fdba4e169166389f99334f820

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PR: https://git.openjdk.java.net/jfx11u/pull/7