RFR: 8282944: GHA: Add Alpine Linux x86_64 pre-integration check [v8]

[George Adams]

On Thu, 15 Aug 2024 10:26:17 GMT, George Adams <gdams at openjdk.org> wrote:

>> Adds Alpine build CI job to the GitHub actions matrix. Currently this only builds hotspot. 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 updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 10 commits:
> 
>  - Merge branch 'master' into alpine
>  - skip gtest and jtreg
>  - add Java 17 for jtreg
>  - add wget
>  - fix order of tasks
>  - fix alpine skip
>  - force grep newline
>  - fix test bundle
>  - add make-target: 'hotspot'
>  - 8282944: GHA: Add Alpine Linux x86_64 pre-integration check

For reference:

| Build Type | Duration |
| ----------  | -------- |
| hotspot (debug) | 21m |
| hotspot (release) | 15m |
| full (debug) | TBD |
| full (release) | TBD |

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PR Comment: https://git.openjdk.org/jdk/pull/20577#issuecomment-2291588558