RFR: 8293368: GitHub Workflows security hardening

[Alex]

On Mon, 5 Sep 2022 16:32:22 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> @sashashura You need to enable running GHA workflows in your personal fork of the `jfx` repo. Given that you are changing the GHA workflow, we will need to see the results from your run in this PR.

https://github.com/sashashura/jfx/actions/runs/2995229526

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PR: https://git.openjdk.org/jfx/pull/889