Update pytest-mock to 1.6.3

[pyup-bot]

There's a new version of pytest-mock available.
You are currently using 1.6.2. I have updated it to 1.6.3

These links might come in handy: PyPI | Changelog | Repo

Changelog

1.6.3

---

• Fix UnicodeDecodeError during assert introspection in assert_called_with in Python 2.
  Thanks AndreasHogstrom_ for the report (91_).

.. _AndreasHogstrom: https://github.com/AndreasHogstrom

.. _91: pytest-dev/pytest-mock#91

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

[codecov]

Codecov Report

Merging #156 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #156   +/-   ##
=======================================
  Coverage   78.22%   78.22%           
=======================================
  Files          15       15           
  Lines         845      845           
  Branches      121      121           
=======================================
  Hits          661      661           
  Misses        153      153           
  Partials       31       31

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