fix: on build, try to delete src before copy

Dockerfile

@@ -3,12 +3,14 @@ FROM python:3.8-alpine
 RUN apk add --no-cache gcc libc-dev linux-headers
 
 # install pypi packages
+RUN rm -rf /django_project
 COPY . /django_project
 RUN pip install --upgrade pip
 RUN pip install /django_project
 RUN pip install uWSGI==2.0.21
 
 COPY ./docker/uwsgi.ini /uwsgi.ini
+RUN rm -rf /scripts
 COPY ./scripts /scripts
 RUN chmod -R +x /scripts
 ENV PATH="/scripts:/py/bin:$PATH"