Upgrade agentic Kimi model to K3

[hvagadia]

Summary

• replace Kimi K2.6 with Kimi K3 in the Agentic Inference submission guide
• update the reference SGLang command, sampling parameters, model specifications, and accuracy thresholds
• allow the Kimi K3 DSPARK heads for SGLang and vLLM
• align the Kimi example YAML with the K3 workload configuration

Validation

• loaded kimi_agentic_benchmark.yaml through BenchmarkConfig.from_yaml_file
• uv run pre-commit run --all-files

[github-actions]

MLCommons CLA bot All contributors have signed the MLCommons CLA ✍️ ✅

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@c30860a). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #450   +/-   ##
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  Coverage        ?   80.98%           
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  Files           ?      150           
  Lines           ?    20208           
  Branches        ?        0           
=======================================
  Hits            ?    16366           
  Misses          ?     3842           
  Partials        ?        0           

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