RFR: 7903431: Update GitHub Actions workflow

[Jonathan Gibbons]

On Tue, 14 Feb 2023 06:44:42 GMT, Christian Stein <cstein at openjdk.org> wrote:

>> .github/workflows/test.yml line 16:
>> 
>>> 14:     steps:
>>> 15:     - name: 'Check out repository'
>>> 16:       uses: actions/checkout at v3
>> 
>> Where do I find the definition of this action?
>
> It is here: https://github.com/actions/checkout
> 
> The common pattern is to prepend `https://github.com/` to an action in use - and omit the version information.

Thank you

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PR: https://git.openjdk.org/jtreg/pull/148