Update pytest_mock to 1.6.3

[pyup-bot]

There's a new version of pytest_mock available.
You are currently using 1.6.0. I have updated it to 1.6.3

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

Changelog

1.6.3

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• 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

1.6.2

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• Provide source package in tar.gz format and remove obsolete MANIFEST.in.

1.6.1

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• Fix mocker.resetall() by ignoring mocker objects which don't have a
  resetall method, like for example patch.dict.
  Thanks jdavisp3_ for the PR (88_).

.. _jdavisp3: https://github.com/jdavisp3

.. _88: pytest-dev/pytest-mock#88

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

Happy merging! 🤖

[codecov-io]

Codecov Report

Merging #36 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #36   +/-   ##
=======================================
  Coverage   97.62%   97.62%           
=======================================
  Files          45       45           
  Lines         673      673           
=======================================
  Hits          657      657           
  Misses         16       16

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