Update moe cubins to fix 2CTA hanging issue

[IwakuraRein]

📌 Description

• Update the MoE cubins. Fix the hanging issue of 2CTA kernels after v0.6.8

🔍 Related Issues

• [Bug][vLLM]: vLLM worker hang on Qwen3.5-397B-A17B-NVFP4 EP=8 (B200) - bisected to flashinfer-python 0.6.7 → 0.6.8.post1 #3279

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🧪 Tests

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Reviewer Notes

Summary by CodeRabbit

• Bug Fixes

  • Updated the default artifact download location to the current repository endpoint.
  • Corrected the path and checksum for the TRTLLM generation artifact to ensure successful retrieval and validation.

• Documentation

  • Updated the environment-variable reference to reflect the new artifact repository URL.

[IwakuraRein]

/bot run

[gemini-code-assist]

Code Review

This pull request updates the default repository URL for downloading FlashInfer cubins to a new Artifactory path in both the documentation (CLAUDE.md) and the loader implementation (flashinfer/jit/cubin_loader.py). Additionally, it updates the artifact path and checksum hash for TRTLLM_GEN_BMM in flashinfer/artifacts.py. There are no review comments, and I have no feedback to provide.

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[coderabbitai]

📝 Walkthrough

Walkthrough

Updated the default cubin repository URL in runtime configuration and documentation. Changed the TRTLLM_GEN_BMM artifact subdirectory and its checksum manifest hash in the artifact registry.

Changes

Artifact configuration

Layer / File(s)	Summary
Artifact metadata and repository defaults flashinfer/artifacts.py, flashinfer/jit/cubin_loader.py, CLAUDE.md	The TRTLLM_GEN_BMM artifact path and checksum were updated, and the documented and runtime default repository URLs now use the new Artifactory endpoint.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• flashinfer-ai/flashinfer#1967: Updates the same TRTLLM_GEN_BMM artifact path and checksum constants.
• flashinfer-ai/flashinfer#2903: Also modifies cubin loading and TRTLLM_GEN_BMM artifact acquisition.

Suggested reviewers: saltyminty

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the main change: updating MoE cubins to address the 2CTA hanging issue.
Description check	✅ Passed	The description follows the template and includes the change summary, related issue, checklist, tests, and reviewer notes.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[flashinfer-bot]

GitLab MR !961 has been created, and the CI pipeline #58002830 is currently running. I'll report back once the pipeline job completes.

[flashinfer-bot]

[CANCELING] Pipeline #58002830: canceled