Update docker for DeepSeek V3.2 blog (#218)

* Update docker for DeepSeek V3.2 blog

* upd

Author: Fridge003

blog/2025-09-29-deepseek-V32.md

@@ -12,7 +12,7 @@ We are excited to announce that **SGLang supports DeepSeek-V3.2 on Day 0**! Acco
 To get started, simply pull the container and launch SGLang as follows:
 
 ```bash
-docker pull lmsysorg/sglang:dsv32
+docker pull lmsysorg/sglang:v0.5.3-cu129
 
 python -m sglang.launch_server --model deepseek-ai/DeepSeek-V3.2-Exp --tp 8 --dp 8 --enable-dp-attention
 ```