[jdk11u-dev] RFR: 8268185: Update GitHub Actions for jtreg 6 [v4]

[Goetz Lindenmaier]

On Thu, 28 Jul 2022 08:53:35 GMT, George Adams <duke at openjdk.org> wrote:

>> simple backport of [JDK-8268185](https://bugs.openjdk.java.net/browse/JDK-8268185): Update GitHub Actions for jtreg 6 in preparation for the GitHub action rewrite backport. Backport applies cleanly even though it can't detect it for some reason and I cannot add the clean label.
>
> George Adams has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains one additional commit since the last revision:
> 
>   Backport e27c4d463d920994b79b8163f063ad74f6ee5d59

The backport is not clean because in 
.github/workflows/submit.yml
The original calls 'sh', but jdk11u-dev calls 'bash'.

Also, the context in make/conf/test-dependencies
differs ( BOOT_JDK_VERSION=11 vs 16).

But the change looks good.

Please only use the /clean command if you 
understood why the change is not clean.
Adaptions to Copyright, ProblemList and maybe
some whitespace differences allow to 
use the command. 
Any resolves in code require a review, also 
such as the differences here.

I'll mark it reviewed in case the tests 
complete green.

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PR: https://git.openjdk.org/jdk11u-dev/pull/1239