Update kimik2.5-int4-h200-vllm vLLM image to v0.21.0

Ref #1154

Co-authored-by: Klaud Cold <Klaud-Cold@users.noreply.github.com>

Author: github-actions[bot]

.github/configs/nvidia-master.yaml

@@ -2481,7 +2481,7 @@ kimik2.5-int4-b300-vllm:
       - { tp: 4, ep: 1, conc-start: 4, conc-end: 64 }
 
 kimik2.5-int4-h200-vllm:
-  image: vllm/vllm-openai:v0.20.2
+  image: vllm/vllm-openai:v0.21.0
   model: moonshotai/Kimi-K2.5
   model-prefix: kimik2.5
   runner: h200

perf-changelog.yaml

@@ -2493,3 +2493,9 @@
     - "Update image tag to vllm/vllm-openai:v0.20.2"
     - "Add DEP configs for B300 vLLM MTP"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/1271
+
+- config-keys:
+    - kimik2.5-int4-h200-vllm
+  description:
+    - "Update vLLM image from v0.20.2 to v0.21.0"
+  pr-link: XXX