$Update gptoss-fp4-b200-vllm vLLM image to v0.20.2\n\nRef #1154\n\nCo-authored-by: Klaud Cold <Klaud-Cold@users.noreply.github.com>

Author: github-actions[bot]

.github/configs/nvidia-master.yaml

@@ -3969,7 +3969,7 @@ gptoss-fp4-b200-trt:
       - { tp: 8, conc-start:   4, conc-end:   4}
 
 gptoss-fp4-b200-vllm:
-  image: vllm/vllm-openai:v0.15.1
+  image: vllm/vllm-openai:v0.20.2
   model: openai/gpt-oss-120b
   model-prefix: gptoss
   runner: b200

perf-changelog.yaml

@@ -2343,3 +2343,9 @@
   description:
     - "Add Qwen3.5-397B-A17B FP8 MI355X ATOM benchmark configs with and without MTP"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/1310
+
+- config-keys:
+    - gptoss-fp4-b200-vllm
+  description:
+    - "Update vLLM image from v0.15.1 to v0.20.2"
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/XXX