redirect configuration is only available top-level on HTTPClient

[weissi]

Whether (and how many times) you want to redirect is usually a setting that you want to be able to set per request and not globally per HTTPClient. Unfortunately, from what I can tell right now, we only allow setting this setting globally which is not practical given the fact that many client need to choose how they handle redirects, yet a single HTTPClient should be widely shared across the application.