fn from_utf8_path(path: &Utf8Path) -> Result<&Self, PathError> {
        if path.is_relative() {
            return Err(PathError::NotAbsolute(path.to_string()));
        }
        Ok(Self::new_unchecked(path))
    }
Converts a `Utf8Path` to an `AbsoluteSystemPath`.
Errors if `Utf8Path` is relative.
crates/turborepo-paths/src/absolute_system_path.rs