fix dockerfile

Author: ProFastCode

Dockerfile

@@ -3,5 +3,5 @@ ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 WORKDIR /code
 COPY requirements.txt /code/
-RUN pip install -r --no-cache-dir requirements.txt
+RUN pip install -r requirements.txt
 COPY . /code/