refactor(hyper): Update to rust-url 1.0

BREAKING CHANGE: The re-exported Url type has breaking changes.

src/uri.rs

@@ -56,7 +56,7 @@ impl FromStr for RequestUri {
     fn from_str(s: &str) -> Result<RequestUri, Error> {
         let bytes = s.as_bytes();
         if bytes == [] {
-            Err(Error::Uri(UrlError::InvalidCharacter))
+            Err(Error::Uri(UrlError::RelativeUrlWithoutBase))
         } else if bytes == b"*" {
             Ok(RequestUri::Star)
         } else if bytes.starts_with(b"/") {