Update certifi to 2019.11.28

[pyup-bot]

This PR updates certifi from 2019.6.16 to 2019.11.28.

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

Links

• PyPI: https://pypi.org/project/certifi
• Homepage: https://certifi.io/

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@9648034). Click here to learn what that means.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             master   #207   +/-   ##
=======================================
  Coverage          ?   100%           
=======================================
  Files             ?     12           
  Lines             ?    116           
  Branches          ?      0           
=======================================
  Hits              ?    116           
  Misses            ?      0           
  Partials          ?      0

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9648034...ab6c0dc. Read the comment docs.

[pyup-bot]

Closing this in favor of #247