[Main2Main] Upgrade vllm commit to 0108

[zhangxinyuehfad]

What this PR does / why we need it?

Upgrade vllm commit to 0108 (eac3b96)

1. remove init_cached_hf_modules due to [Chore] Try remove init_cached_hf_modules vllm#31786
2. skip spec_decode e2e test due to [Perf] Async Scheduling + Speculative Decoding + Structured Outputs vllm#29821 break
3. fix vllm.v1.attention.backends.utils duo to [Chore] Migrate V0 attention utils vllm#31891
4. skip test_qwen3_next_distributed_mp_full_decode_only_tp4 due to [Attention][1/n] Remove usage of deprecated seq_lens_cpu and num_computed_tokens_cpu CommonAttentionMetadata properties vllm#31773 ([Bugfix] Keep all tensors to be on the same device vllm#31958 will fix)

Does this PR introduce any user-facing change?

How was this patch tested?

• vLLM version: v0.13.0
• vLLM main: vllm-project/vllm@2f4e654

[gemini-code-assist]

Code Review

This pull request upgrades the vLLM commit hash and introduces compatibility shims for changes in the new version. The changes correctly identify areas that need adaptation, such as the import path for PAD_SLOT_ID and the usage of init_cached_hf_modules.

However, there are some critical and high-severity issues. The compatibility logic relies on an exact version match (vllm_version_is), which is brittle and will likely fail for versions other than the one specified. This needs to be replaced with more robust version range checks. Additionally, the conditional import logic is duplicated across multiple files, which impacts maintainability. I've left specific comments with suggestions to address these points by refactoring the version checking utility and centralizing compatibility imports.

[github-actions]

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[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.

[wjunLu]

We don't need this PR anymore, please just keep 0112