[wip] feat: support variable sequence length in decode kernel of trtllm-gen attention

[yaoyaoding]

📌 Description

Fix #1832

🔍 Related Issues

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[yzh119]

/bot run

[flashinfer-bot]

GitLab MR !166 has been created, and the CI pipeline #39223431 is currently running. I'll report back once the pipeline job completes.

[flashinfer-bot]

[FAILED] Pipeline #39223431: 3/20 passed