python3-urllib3: upgrade 1.26.8 -> 1.26.9

python3-urllib3: upgrade 1.26.8 -> 1.26.9

Changelog:
==========
- Changed urllib3[brotli] extra to favor installing Brotli libraries that are
  still receiving updates like brotli and brotlicffi instead of brotlipy.
  This change does not impact behavior of urllib3, only which dependencies are
  installed.
- Fixed a socket leaking when HTTPSConnection.connect() raises an exception.
- Fixed server_hostname being forwarded from PoolManager to HTTPConnectionPool
  when requesting an HTTP URL. Should only be forwarded when requesting an HTTPS URL.

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>