install other fastapi dependencies

Dockerfile

@@ -22,6 +22,8 @@ RUN cd /bigcodebench && pip install .
 
 RUN pip install -I --timeout 2000 -r https://github.com/bigcode-project/bigcodebench-annotation/releases/download/v0.1.0/requirements.txt
 
+RUN pip install fastapi gunicorn uvicorn[standard] httpx pydantic==2.*
+
 RUN apt-get update && \
     apt-get install -y \
       bash \