fixed: missing py package

demo-basic-fastapi/Dockerfile

@@ -1,6 +1,6 @@
 FROM python:3.9
 WORKDIR /test_app
-RUN pip install fastapi uvicorn redis numpy pydantic
+RUN pip install fastapi uvicorn redis numpy pydantic psycopg2
 COPY src/ .
 ENV PORT=5050
 EXPOSE $PORT