Update docker

docker/openclaw/Dockerfile

@@ -16,7 +16,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     && rm -rf /var/lib/apt/lists/* \
     && pip3 install --break-system-packages uv \
     && npm install -g pnpm bun \
-    && pnpm add -g openclaw@latest
+    && npm install -g openclaw@latest
 
 # Create necessary directories
 RUN mkdir -p /home/node/.openclaw /home/node/clawd /home/node/.cache