build: 更新Dockerfile

Dockerfile

@@ -11,8 +11,8 @@ RUN pip install --upgrade pip
 
 RUN pip install -i https://pypi.tuna.tsinghua.edu.cn/simple uv
 # 因版本问题，这一个要在最后手动安装，否则构建镜像失败
-
 ENV UV_DEFAULT_INDEX=https://mirrors.aliyun.com/pypi/simple
+ENV UV_PYTHON_INSTALL_MIRROR=https://gh-proxy.com/github.com/indygreg/python-build-standalone/releases/download
 RUN cd /3Dpoints
 ENTRYPOINT ["/3Dpoints/run.sh"]
 EXPOSE 8081