update Dockerfile

[99Kies]

1. 利用本地资源build 镜像 缩短时间
2. 获取get_buildchain.sh 的url不稳定，更换获得build_chain.sh的方式
3. 防止重复git clone

[99Kies]

这个https://raw.githubusercontent.com/FISCO-BCOS/FISCO-BCOS/master/tools/get_buildchain.sh在linux下 curl这个url 常常失败

[ghost]

Warnings are found on analyzing the commit 09e3d04.

1 warning:

• ⚠️ Goodcheck

We recommend to address them as possible, for example, update outdated dependencies, fix the tool's configuration, configure sider.yml, turn off unused tools, and so on.

If you are struggling with these errors or warnings, feel free to ask us via chat. 💬

[JimmyShi22]

Suggested change

	curl -LO https://github.com/FISCO-BCOS/FISCO-BCOS/releases/download/`curl -s https://api.github.com/repos/FISCO-BCOS/FISCO-BCOS/releases | grep "\"v2\.[0-9]\.[0-9]\"" | sort -u | tail -n 1 | cut -d \" -f 4`/build_chain.sh && chmod u+x build_chain.sh && \
	curl -LO https://github.com/FISCO-BCOS/FISCO-BCOS/releases/download/$(curl -s https://api.github.com/repos/FISCO-BCOS/FISCO-BCOS/releases | grep "\"v2\.[0-9]\.[0-9]\"" | sort -u | tail -n 1 | cut -d \" -f 4)/build_chain.sh && chmod u+x build_chain.sh && \