Upgrade to new vllm commit and Refactor DeepSeekV3.2 #3644
                
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What this PR does / why we need it?
Upgrade to vllm 0.11.1 and Refactor DeepSeekV3.2
vllm.utilsvllm#26908sha256, caused by [Misc] Move utils to avoid conflicts with stdlib, and move tests vllm#27169SchedulerConfig.send_delta_data, caused by [V0 Deprecation] Remove V0 executors vllm#27142FusedMoEbecause of dual stream execution, caused by [Performance] Dual stream execution of "shared_experts" and "selected_experts" inside FusedMoE vllm#26440Does this PR introduce any user-facing change?
N/A
How was this patch tested?
CI passed with new added/existing test.