Update pytest-runner to 5.3.1

[pyup-bot]

This PR updates pytest-runner from 3.0 to 5.3.1.

Changelog

5.3.1

======

* Refreshed package metadata.

5.3.0

======

* Require Python 3.6 or later.
* Refreshed package metadata.

5.2

===

* 50: This project is deprecated.

5.1

===

* 49: Surgically restore support for older setuptools versions.

5.0

===

* 42: Prefer pyproject.toml
* Refresh package metadata.
* This release now intentionally introduces the changes
unintionally brought about in 4.5 and 4.3, where the
adoption of declarative config adds a new requirement
on setuptools 30.4 or later. On systems running older
setuptools, installation of pytest-runner via
``easy_install`` (or ``setup_requires``), will result
in a ``DistributionNotFound`` exception.

All projects should pin to ``pytest-runner < 5``
or upgrade the environment to ``setuptools >= 30.4``
(prior to invoking setup.py).

4.5.1

=====

* 48: Revert changes from 4.5 - restoring project to the
state at 4.4.

4.5

===

(Pulled from PyPI due to 43 and 48)

* Packaging (skeleton) refresh, including adoption of
`black <https://pypi.org/project/black>`_ for style.

4.4

===

* 43: Detect condition where declarative config will cause
errors and emit a UserWarning with guidance on necessary
actions.

4.3.1

=====

* 43: Re-release of 4.2 to supersede the 4.3 release which
proved to be backward-incompatible in that it requires
setuptools 30.4 or possibly later (to install). In the future, a
backward-incompatible release will re-release these changes.
For projects including pytest-runner, particularly as
``setup_requires``, if support for older setuptools is required,
please pin to ``pytest-runner < 5``.

4.3

===

(Pulled from PyPI due to 43)

* 42: Update project metadata, including pyproject.toml declaration.

4.2

===

* 40: Remove declared dependency and instead assert it at
run time.

4.1

===

* 40: Declare dependency on Setuptools in package metadata.

4.0

===

* Drop support for Setuptools before Setuptools 27.3.0.

3.0.1

=====

* 38: Fixed AttributeError when running with ``--dry-run``.
``PyTest.run()`` no longer stores nor returns the result code.
Based on the commit message for `840ff4c <
https://github.com/pytest-dev/pytest-runner/commit/840ff4c2bf6c752d9770f0dd8d64a841060cf9bc>`_,
nothing has ever relied on that value.

Links

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

[codecov-commenter]

Codecov Report

Merging #1201 (68d5ce8) into master (7ab5b29) will increase coverage by 1.62%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1201      +/-   ##
==========================================
+ Coverage   35.38%   37.00%   +1.62%     
==========================================
  Files          30       31       +1     
  Lines        3103     3259     +156     
==========================================
+ Hits         1098     1206     +108     
- Misses       2005     2053      +48     

Impacted Files	Coverage Δ
stackformation/__init__.py	69.23% <0.00%> (ø)

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[pyup-bot]

Closing this in favor of #1457