[None][fix] Revert GHA upgrade for blossom-ci workflow

[tburt-nv]

Description

Partially reverts #10045.

The blossom-ci workflow is very sensitive to changes in the workflow file. We'll need to reduce this sensitivity before upgrading the GHA version.

Test Coverage

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run [--reuse-test (optional)pipeline-id --disable-fail-fast --skip-test --stage-list "A10-PyTorch-1, xxx" --gpu-type "A30, H100_PCIe" --test-backend "pytorch, cpp" --add-multi-gpu-test --only-multi-gpu-test --disable-multi-gpu-test --post-merge --extra-stage "H100_PCIe-TensorRT-Post-Merge-1, xxx" --detailed-log --debug(experimental)]

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--test-backend "pytorch, cpp" (OPTIONAL) : Skip test stages which don't match the specified backends. Only support [pytorch, cpp, tensorrt, triton]. Examples: "pytorch, cpp" (does not run test stages with tensorrt or triton backend). Note: Does NOT update GitHub pipeline status.

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--add-multi-gpu-test (OPTIONAL) : Force run the multi-GPU tests in addition to running L0 pre-merge pipeline.

--post-merge (OPTIONAL) : Run the L0 post-merge pipeline instead of the ordinary L0 pre-merge pipeline.

--extra-stage "H100_PCIe-TensorRT-Post-Merge-1, xxx" (OPTIONAL) : Run the ordinary L0 pre-merge pipeline and specified test stages. Examples: --extra-stage "H100_PCIe-TensorRT-Post-Merge-1, xxx".

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kill

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skip

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reuse-pipeline

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Summary by CodeRabbit

• Chores
  • Updated internal CI/CD workflow configuration.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The GitHub Actions workflow file downgrades the actions/checkout action from version 6 to version 2 in two places, without modifying any workflow logic, steps, or error handling.

Changes

Cohort / File(s)	Summary
GitHub Actions workflow update .github/workflows/blossom-ci.yml	Downgraded actions/checkout action from v6 to v2 in two checkout step references

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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Review profile: CHILL

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📥 Commits

Reviewing files that changed from the base of the PR and between 22c6e8a and 47f562d.

📒 Files selected for processing (1)

• .github/workflows/blossom-ci.yml (1 hunks)

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