Update pytest-cov to 2.11.1

[pyup-bot]

This PR updates pytest-cov from 2.11.0 to 2.11.1.

Changelog

2.11.1

-------------------

* Fixed support for newer setuptools (v42+).
Contributed by Michał Górny in `451 <https://github.com/pytest-dev/pytest-cov/pull/451>`_.

Links

• PyPI: https://pypi.org/project/pytest-cov
• Changelog: https://pyup.io/changelogs/pytest-cov/
• Repo: https://github.com/pytest-dev/pytest-cov

[codecov]

Codecov Report

Merging #488 (075f913) into develop (0c97ee7) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #488      +/-   ##
===========================================
- Coverage    78.47%   78.41%   -0.07%     
===========================================
  Files           83       83              
  Lines         3122     3122              
===========================================
- Hits          2450     2448       -2     
- Misses         672      674       +2     

Impacted Files	Coverage Δ
proxy/core/event/subscriber.py	79.66% <0.00%> (-3.39%)	⬇️

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