- Skip test_source_address_error as we raise different error with
fixes that we provide in new python2/3

- Add more test to skip as with new openssl some behaviour changed
and we can't rely on them anymore

- Unbundle the six, rfc3986, and backports.ssl_match_hostname

- Update to 1.25.3:
* Change HTTPSConnection to load system CA certificates when ca_certs, ca_cert_dir, and ssl_context are unspecified. (Pull #1608, Issue #1603)
* Upgrade bundled rfc3986 to v1.3.2. (Pull #1609, Issue #1605)

- Update to 1.25.2:
* Change is_ipaddress to not detect IPvFuture addresses. (Pull #1583)
* Change parse_url to percent-encode invalid characters within the path, query, and target components. (Pull #1586)
* Add support for Google's Brotli package. (Pull #1572, Pull #1579)
* Upgrade bundled rfc3986 to v1.3.1 (Pull #1578)
- Require all the deps from the secure list rather than Recommend.
This makes the check to be run always and ensure the urls are
"secure".
- Remove ndg-httpsclient as it is not needed since 2015

- Add missing dependency on brotlipy
- Fix the tests to pass again

- update to 1.25 (bsc#1132663, CVE-2019-11236):
* Require and validate certificates by default when using HTTPS
* Upgraded ``urllib3.utils.parse_url()`` to be RFC 3986 compliant.
* Added support for ``key_password`` for ``HTTPSConnectionPool`` to use
encrypted ``key_file`` without creating your own ``SSLContext`` object.