build: bump vllm-openai-cpu base image to v0.25.0

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: nathan-weinberg

vllm/Containerfile

@@ -2,7 +2,7 @@
 #
 # Reference: https://hub.docker.com/r/vllm/vllm-openai-cpu
 
-FROM vllm/vllm-openai-cpu:v0.23.0
+FROM vllm/vllm-openai-cpu:v0.25.0
 
 RUN pip install "huggingface-hub[cli]"