[Main] Upgrade vllm commit to 2025_12_01

[Potabk]

What this PR does / why we need it?

1. fix Update rope_scaling to rope_parameters in preparation for Transformers v5 vllm#28542
   The model structure modifications we involved in are:

   • Qwen2.5-VL(still exist some patch)
   • Qwen2-VL
   • Qwen2
   • DeepSeek series
   • Qwen-moe series

2. fix Revert "[Redo] #26368 (#28771)" vllm#29121
   the output token now type changed from np to list[list[int]]

3. fix [Core] Deprecate xformers vllm#29262
   xformers backend for multimodal now has been deprecated

4. fix [Attention] Remove imports from vllm/attention/__init__.py vllm#29342

5. fix [Core] Refactor padding logic and pad for CUDA graphs before attention metadata building  vllm#28579

6. fix [Feature] Prefill Context Parallel (PCP) basic support vllm#28718

7. fix [Config] Clean up SchedulerConfig initialization vllm#28665

8. fix [Frontend][torch.compile] CompilationConfig Overhaul (#20283): Set up -O infrastructure vllm#26847
   vllm introduced the optimization-level, some default config has been changed, and the param --enforce-eager has been deprecated

Does this PR introduce any user-facing change?

How was this patch tested?

• vLLM version: v0.11.2
• vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.2

[gemini-code-assist]

Note

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[github-actions]

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[wangxiyuan]

replace by #4608