Upgrade github action versions

[derrickaw]

1. upgrade upload_artifact version to v7
2. upgrade download_artifact version to v7
3. upgrade checkout version to v6
4. Addresses this warning:
   Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v4, actions/upload-artifact@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026.

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[gemini-code-assist]

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[derrickaw]

Hi @Abacn, do the runner containers still run on node 20? or have they been upgraded to 24? Thanks.

[Abacn]

Thanks for doing this. There are two caveats

• .github/workflow changes does not get honored in PR run, and one need to trigger these tests on a branch under apache/beam with workflow_dispatch trigger to test them

• Apache Infra has an allowlist of github actions (though not sure github's official actions is in scope) therefore we still need to test them before merge

I would suggest we merge this after current release done, as the release workflows also using GHA definition at HEAD

[derrickaw]

• .github/workflow changes does not get honored in PR run, and one need to trigger these tests on a branch under apache/beam with workflow_dispatch trigger to test them

Hi @Abacn, do I need to check every workflow? or just spot check say 10? Thanks

[gemini-code-assist]

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[Abacn]

Thank you!