Update Dockerfile

Dockerfile

@@ -3,11 +3,10 @@ RUN apt-get update
 RUN apt-get install -y python3-pip
 RUN apt-get install -y python3-venv
 RUN python3 -m venv /code/venv
-RUN /code/venv/bin/pip install --upgrade pip
-RUN /code/venv/bin/pip install -r /code/requirements.txt
 WORKDIR /code
 COPY ./requirements.txt /code/requirements.txt
-RUN pip install -r requirements.txt
+RUN /code/venv/bin/pip install --upgrade pip
+RUN /code/venv/bin/pip install -r /code/requirements.txt
 COPY . .
 ENV PATH="/code/venv/bin:$PATH"
 EXPOSE 7860