Bump urllib3 from 1.26.4 to 1.26.5

[dependabot]

Bumps urllib3 from 1.26.4 to 1.26.5.

Release notes

Sourced from urllib3's releases.

1.26.5

⚠️ IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

• Fixed deprecation warnings emitted in Python 3.10.
• Updated vendored six library to 1.16.0.
• Improved performance of URL parser when splitting the authority component.

If you or your organization rely on urllib3 consider supporting us via GitHub Sponsors

Changelog

Sourced from urllib3's changelog.

1.26.5 (2021-05-26)

• Fixed deprecation warnings emitted in Python 3.10.
• Updated vendored six library to 1.16.0.
• Improved performance of URL parser when splitting the authority component.

Commits

• d161647 Release 1.26.5
• 2d4a3fe Improve performance of sub-authority splitting in URL
• 2698537 Update vendored six to 1.16.0
• 07bed79 Fix deprecation warnings for Python 3.10 ssl module
• d725a9b Add Python 3.10 to GitHub Actions
• 339ad34 Use pytest==6.2.4 on Python 3.10+
• f271c9c Apply latest Black formatting
• 1884878 [1.26] Properly proxy EOF on the SSLTransport test suite
• See full diff in compare view

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[betatim]

CircleCI failure is a real failure:

Running Sphinx v4.0.2
making output directory... done

Exception occurred:
  File "/home/circleci/project/docs/source/conf.py", line 50, in setup
    app.add_stylesheet("custom.css")  # may also be a URL
AttributeError: 'Sphinx' object has no attribute 'add_stylesheet'
The full traceback has been saved in /tmp/sphinx-err-t_r7dvnt.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
make: *** [Makefile:20: html] Error 2

Exited with code exit status 2

Something to investigate

[yuvipanda]

I opened #1050 to fix the CircleCI failure.