Update Dockerfile

Dockerfile

@@ -12,10 +12,8 @@ COPY ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade pip
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
-RUN which python
-RUN which pip
-RUN python --version
-RUN python -m pip install janus_swi
+RUN git clone https://github.com/SWI-Prolog/packages-swipy.git
+RUN copy packages-swipy/janus/janus.pl janus.pl
 RUN echo 1 | swipl pack install janus
 RUN python -c "import janus_swi as janus"