[CI] Fix broken CI

[wangxiyuan]

1. vLLM commit vllm-project/vllm@45badd0 changed the pooling check logic which broken vLLM Ascend.
2. vLLM commit vllm-project/vllm@3e04107 requires higher version of transformers. The transformers version bug has been fixed by vllm-project/vllm@e936e40. We can safe to remove the version limit now.
3. vLLM commit vllm-project/vllm@2179372 added a new input enable_eplb for FusedMoe Ops

This PR fix the broken CI.

• vLLM version: v0.9.2
• vLLM main: vllm-project/vllm@6a971ed

[codecov]

Codecov Report

❌ Patch coverage is 41.66667% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.89%. Comparing base (2ee9046) to head (65d322b).
⚠️ Report is 547 commits behind head on main.

Files with missing lines	Patch %	Lines
vllm_ascend/worker/npu_input_batch.py	41.66%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1889      +/-   ##
==========================================
- Coverage   60.93%   60.89%   -0.04%     
==========================================
  Files          73       73              
  Lines        8147     8157      +10     
==========================================
+ Hits         4964     4967       +3     
- Misses       3183     3190       +7     

Flag	Coverage Δ
unittests	60.89% <41.66%> (-0.04%)	⬇️

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