Update Dockerfile

Dockerfile

@@ -4,8 +4,9 @@ WORKDIR /code
 
 COPY ./requirements.txt /code/requirements.txt
 
+RUN pip install --upgrade pip
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 COPY . .
 
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]