修改离线镜像构建

docker/Dockerfile-offline

@@ -6,7 +6,7 @@ WORKDIR /usr/src/app
 
 # 拷贝离线 deb 包和 python 包
 # COPY offline/apt-packages /offline_apt
-COPY offline/pypi-packages /offline_pypi
+COPY offline/arm-pypi-packages /offline_pypi
 
 # 拷贝你的代码和 requirements.txt
 COPY watermark_verify ./watermark_verify