Update kimik2.5-fp4-b300-vllm vLLM image to v0.21.0

Author: functionstackx

.github/configs/nvidia-master.yaml

@@ -2684,7 +2684,7 @@ kimik2.5-fp4-b200-vllm-agentic:
 # Kimi-K2.5 FP4 B200 vLLM recipe as-is until B300-specific tuning is available.
 
 kimik2.5-fp4-b300-vllm:
-  image: vllm/vllm-openai:v0.19.0-cu130
+  image: vllm/vllm-openai:v0.21.0
   model: nvidia/Kimi-K2.5-NVFP4
   model-prefix: kimik2.5
   runner: b300

perf-changelog.yaml

@@ -2629,3 +2629,9 @@
   description:
     - "Update vLLM ROCm image from v0.18.0 to v0.21.0"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/1404
+
+- config-keys:
+    - kimik2.5-fp4-b300-vllm
+  description:
+    - "Update vLLM image from v0.19.0-cu130 (27d old) to v0.21.0"
+  pr-link: PLACEHOLDER