ariang version pinned

[clach04]

https://github.com/colinwjd/aria2-ariang/blob/96e421cfc47a16c3492267a735326b6cd2b6ce2c/Dockerfile#L8

Uses v1.1.1. current version is https://github.com/mayswind/AriaNg/releases/tag/1.3.4

What's the best way to update?

• Pin a newer version, currently requires a three line change
• pull headrevs from a git checkout
• pull tag from a git checkout, one line code change in the future to update