git: openjdk/jdk8u-dev: 8295714: GHA ::set-output is deprecated and will be removed

[Paul Hohensee]

Changeset: 17fd40ac
Author:    Zdenek Zambersky <zzambers at redhat.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-11-14 15:14:04 +0000
URL:       https://git.openjdk.org/jdk8u-dev/commit/17fd40ac17b1bbcee302797961c67e38986a3ffd

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

Reviewed-by: sgehwolf
Backport-of: b35922be6de7b848a2982d6a278dbd205fc39e6a

! .github/workflows/submit.yml