Feature Request: Change AUR URL to reverse proxy

Pamac Version

10.2.0

Libpamac Version

11.1.0

Desktop environment

KDE

In China, due to the Great Firewall, the link to AUR is bad and cause problems:

pamac build (package_name)
Failed to query https://aur.archlinux.org/rpc/?v=5&type=info&arg[]=(package_name) from AUR: 
Socket I/O timed out
Error: target not found: (package_name)

But there is a reverse proxy https://aur.tuna.tsinghua.edu.cn which is fast in China, which can use by yay via yay --aururl "https://aur.tuna.tsinghua.edu.cn" --save, I think it is useful for pamac to add this feature.