Use TryFrom instead of the cast crate for usize -> u32
Use TryFrom instead of the cast crate for usize -> u32

See https://github.com/japaric/cast.rs/issues/20

Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/622>

GNOME/librsvg,GNOME/librsvg,GNOME/librsvg,GNOME/librsvg