Fix path issue

Dockerfile

@@ -23,7 +23,7 @@ RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 # Install Julia:
 RUN curl -fsSL https://install.julialang.org | sh -s -- -y --default-channel=1.10.0
-RUN ln -s /root/.julia/bin/julia /usr/local/bin/julia
+ENV PYTHON_JULIACALL_BINDIR="/root/.julia/bin"
 # Install Julia dependencies
 RUN python -c "import pysr"