Update certifi to 2022.5.18.1

[pyup-bot]

This PR updates certifi from 2021.10.8 to 2022.5.18.1.

The bot wasn't able to find a changelog for this release. Got an idea?

Links

• PyPI: https://pypi.org/project/certifi
• Repo: https://github.com/certifi/python-certifi

[codecov]

Codecov Report

Merging #220 (03990f9) into main (436e1d1) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #220   +/-   ##
=======================================
  Coverage   86.85%   86.85%           
=======================================
  Files          21       21           
  Lines         289      289           
=======================================
  Hits          251      251           
  Misses         38       38           

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