Update cairo required version to 1.16 like the targetted Rust crate
Fixes #1016 (closed).
It builds locally for me with this change. The cairo-rs
feature is using 1.16
but you're requiring the minimum version to be 1.17. I suppose it's what you want but no idea. In any case, if you don't this change, I still have another idea that could work which would be to add an extra [package.metadata.system-deps.docsrs]
(or something along the line) which would change the targetted version of cairo.