Update Dockerfile

Dockerfile

@@ -13,5 +13,7 @@ RUN echo 'cloning facechain:hf_space_fact'
 RUN git clone -b feat/hf_space_fact https://github.com/modelscope/facechain.git
 WORKDIR $HOME/facechain
 RUN pip install -r requirements.txt
+RUN apt-get install -y libjemalloc-dev
+ENV LD_PRELOAD $LD_PRELOAD:/lib/x86_64-linux-gnu/libjemalloc.so
 ENV PYTHONPATH=.
 CMD ["python", "app.py"]