Update Dockerfile

Dockerfile

@@ -15,5 +15,8 @@ RUN --mount=type=secret,id=GITHUB_TOKEN,mode=0444,required=true \
 COPY static /app/static
 RUN pip install --no-cache-dir -r requirements.txt \
     || (echo "PIP INSTALL FAILED!" && exit 1)
+
+RUN R -e "install.packages('fastshap', repos='https://cloud.r-project.org/')"
+
 EXPOSE 7860
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]