### What this PR does / why we need it?
The GPQA dataset accuracy in the PD separation scenario of testing is
33.2, which does not meet the paper's requirement of 70. Resolve this
accuracy issue.
### Does this PR introduce _any_ user-facing change?
### How was this patch tested?
qpqa has accuracy issues, but modifying the code can ensure the accuracy
meets the standard
- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0
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Signed-off-by: fjw <2270923832@qq.com>
aa6154703a