* Drop urllib3 in favor of public gist
* Drop urllib3 coverage omit
* Drop recommendation to use urllib3 transport during Requests migration
* Add urllib3-transport to 3p pkgs
* Drop urllib3 from dependencies list in README / docs home page
Co-authored-by: Tom Christie <tom@tomchristie.com>
* Fix HttpError -> HTTPError typo
* Increased test coverage
* Increase coverage threshold
* Reuse sync/async transport code in test_auth.py
* Removed close_client check inside StreamContextManager
It's never set as True when used in async
* Reuse sync/async transport code in test_redirects.py
