RFR: 8282944: GHA: Add Alpine Linux x86_64 pre-integration check [v3]

[Magnus Ihse Bursie]

On Thu, 10 Mar 2022 11:09:55 GMT, George Adams <duke at openjdk.java.net> wrote:

>> Adds Alpine build CI job to the GitHub actions submit.yml. I can add tests too if people think that would be useful but for now I've left it as just build.
>
> George Adams has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:
> 
>   change upload bundle ID

While to code itself looks like its doing what it claims to do, I wonder about the reason for doing this. This will slurp up even more CPU minutes from the individual OpenJDK contributors free GitHub allowance, and potentially make the pre-submit tests even slower. For what gain?

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PR: https://git.openjdk.java.net/jdk/pull/7771