Bump vllm in /api-server/qna-eval in the pip group across 1 directory

Bumps the pip group with 1 update in the /api-server/qna-eval directory: [vllm](https://github.com/vllm-project/vllm).


Updates `vllm` from 0.8.0 to 0.8.2
- [Release notes](https://github.com/vllm-project/vllm/releases)
- [Changelog](https://github.com/vllm-project/vllm/blob/main/RELEASE.md)
- [Commits](vllm-project/vllm@v0.8.0...v0.8.2)

---
updated-dependencies:
- dependency-name: vllm
  dependency-version: 0.8.2
  dependency-type: direct:production
  dependency-group: pip
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

api-server/qna-eval/requirements.txt

@@ -163,7 +163,7 @@ urllib3==2.3.0
 uvicorn==0.34.0
 uvloop==0.21.0
 virtualenv==20.28.1
-vllm==0.8.0
+vllm==0.8.2
 watchfiles==1.0.3
 wcwidth==0.2.13
 webencodings==0.5.1