Update dsr1-fp4-mi355x-sglang SGLang image to v0.5.12-rocm700-mi35x

Ref #1154

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

Author: github-actions[bot]

.github/configs/amd-master.yaml

@@ -1,5 +1,5 @@
 dsr1-fp4-mi355x-sglang:
-  image: lmsysorg/sglang:v0.5.9-rocm700-mi35x
+  image: lmsysorg/sglang:v0.5.12-rocm700-mi35x
   model: amd/DeepSeek-R1-0528-MXFP4-Preview
   model-prefix: dsr1
   runner: mi355x

perf-changelog.yaml

@@ -2548,3 +2548,9 @@
   description:
     - "Update vLLM image from v0.20.2 to v0.21.0"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/1402
+
+- config-keys:
+    - dsr1-fp4-mi355x-sglang
+  description:
+    - "Update SGLang image from v0.5.9-rocm700-mi35x to v0.5.12-rocm700-mi35x"
+  pr-link: XXX