RFC Final Comment Period: Mirror definition - Proposal for new mirror administration routines and mirror requirements

An RFC has now entered its Final Comment Period. In 14 days, discussion will end and the proposal will either be accepted, rejected or withdrawn: https://gitlab.archlinux.org/archlinux/rfcs/-/merge_requests/29 Please visit the above link for discussion. Summary: Before this proposal, all tasks surrounding mirrors were manual and in free-text form. This RFC therefore outlines the definitions and guidelines surrounding both becoming but also maintaining and decommissioning a mirrors in a new format using TOML and GitLab.