Wrong encoding for cf::Url::with_path

[kusaanko]

To convert from Rust's Path to URL, I used cf::Url::with_path.
But the generated string is used wrong encoding.
My macOS uses Japanese.

MacBook Airのマイク is converted to MacBook Air縺ｮ繝槭う繧ｯ

I changed

cidre/cidre/src/cf/url.rs

Line 65 in b0be23b

let encoding = cf::StringEncoding::sys_encoding();

to

cf::StringEncoding::UTF8

then the conversion succeeded.

My system returns kCFStringEncodingMacJapanese = 1 from StringEncoding::sys_encoding().

macOS uses UTF-8(NFD) as file names, so the conversion fails?

[yury]

Thank you!