Update Dockerfile

Dockerfile

@@ -12,8 +12,7 @@ COPY ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade pip
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
-RUN find / -name janus-*.zip 2> >(grep -v 'Permission denied' >&2)
-RUN find / -name janus-*.tgz 2> >(grep -v 'Permission denied' >&2)
+RUN find / -name janus-*.tgz
 
 RUN git clone https://github.com/SWI-Prolog/packages-swipy.git
 RUN mv packages-swipy/janus/janus.pl .