RFR: 8295714: GHA ::set-output is deprecated and will be removed

[Aleksey Shipilev]

On Fri, 21 Oct 2022 07:35:09 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> My fixes were green, but all of the annoying log spam was not gone. After some digging, it turned out that GitHub's own `download-artifact at v3` was not clean, so I've upgraded it to `download-artifact at v3.0.1` which was released just hours (!) ago. (Luckily I did not try to research this yesterday...)

Hah, DevOps goes brrrrr.

I would then wait for `@v3` to catch up with the latest version, instead of sticking the `@v3.0.1` that would keep us at outdated version as newer versions appear. We can try to re-test this PR next week, maybe?

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PR: https://git.openjdk.org/jdk/pull/10785