RFR: 8350437: [GHA] Update gradle wrapper-validation action to v3

[Kevin Rushforth]

On Thu, 20 Feb 2025 13:42:01 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Update the GitHub gradle wrapper-validation action to v3. In addition to being a good practice in general, we've had a few intermittent failures in the existing validation task, and updating to the latest might help with this.

I'll integrate this tomorrow.

Btw, I pushed this fix to a [bad-gradle-wrapper-validation-v3](https://github.com/kevinrushforth/jfx/tree/refs/heads/bad-gradle-wrapper-validation-v3) test branch, along with a commit that injects a failure by updating `gradle-wrapper.jar` such that the checksum doesn't match (I unzipped and rezipped it). The updated v3 version of the gradle wrapper-validation action still catches the problem:

https://github.com/kevinrushforth/jfx/actions/runs/13442644497

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PR Comment: https://git.openjdk.org/jfx/pull/1718#issuecomment-2672776163