fix: dir

Dockerfile

@@ -5,7 +5,8 @@ RUN pip install vllm
 
 # install node and npm for demo
 ENV NVM_DIR /usr/local/nvm
-RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.2/install.sh | PROFILE=/etc/bash.bashrc bash
+RUN mkdir -p $NVM_DIR
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.2/install.sh | PROFILE=/etc/bash.bashrc bash
 RUN . $NVM_DIR/nvm.sh && nvm install
 
 # Set up a new user named "user" with user ID 1000