AK: Port URL scheme from DeprecatedString to String

Author: https://github.com/shannonbooth
Commit: c25485700a
Pull-request: https://github.com/SerenityOS/serenity/pull/20510
Reviewed-by: https://github.com/ADKaster ✅

Userland/Libraries/LibWeb/Fetch/Fetching/Fetching.cpp

@@ -266,7 +266,7 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
         && false
 
     ) {
-        request->current_url().set_scheme("https"sv);
+        request->current_url().set_scheme("https"_string);
     }
 
     JS::SafeFunction<WebIDL::ExceptionOr<JS::NonnullGCPtr<PendingResponse>>()> get_response = [&realm, &vm, &fetch_params, request]() -> WebIDL::ExceptionOr<JS::NonnullGCPtr<PendingResponse>> {