Fix a bug noticed by a quicktest run

Introduces percent-decoding back - in the past we used to do
urlencode in parse_uri instead.

Signed-off-by: Andrii Sultanov <andrii.sultanov@cloud.com>

Author: Andrii Sultanov

ocaml/libs/http-lib/http_svr.ml

@@ -375,7 +375,7 @@ let request_of_bio_exn ~proxy_seen ~read_timeout ~total_timeout ~max_length bio
                  (* Request-Line   = Method SP Request-URI SP HTTP-Version CRLF *)
                  let uri_t = Uri.of_string uri in
                  if uri_t = Uri.empty then raise Http_parse_failure ;
-                 let uri = Uri.path uri_t in
+                 let uri = Uri.path uri_t |> Uri.pct_decode in
                  let query = Uri.query uri_t |> kvlist_flatten in
                  let m = Http.method_t_of_string meth in
                  let version =