Update pytest-mock to 1.3.0

[pyup-bot]

There's a new version of pytest-mock available.
You are currently using 1.2. I have updated it to 1.3.0

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

Changelog

1.3

---

• Add support for Python 3.6. Thanks hackebrot_ for the report (59_).
• mock.mock_open is now aliased as mocker.mock_open for convenience.
  Thanks pokidovea_ for the PR (66_).

.. _hackebrot: https://github.com/hackebrot
.. _pokidovea: https://github.com/pokidovea
.. _59: pytest-dev/pytest-mock#59
.. _66: pytest-dev/pytest-mock#66

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

Happy merging! 🤖

[codecov-io]

Current coverage is 98.80% (diff: 100%)

Merging #1346 into master will not change coverage

@@             master      #1346   diff @@
==========================================
  Files            29         29          
  Lines          6699       6699          
  Methods           0          0          
  Messages          0          0          
  Branches       1110       1110          
==========================================
  Hits           6619       6619          
  Misses           36         36          
  Partials         44         44          

Powered by Codecov. Last update 95c92d2...6601840

[lock]

This thread has been automatically locked since there has not been
any recent activity after it was closed. Please open a new issue for
related bugs.

If you feel like there's important points made in this discussion,
please include those exceprts into that new issue.