Update pytest-cov to 2.12.1

[pyup-bot]

This PR updates pytest-cov from 2.12.0 to 2.12.1.

Changelog

2.12.1

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

* Changed the `toml` requirement to be always be directly required (instead of being required through a coverage extra).
This fixes issues with pip-compile (`pip-tools1300 <https://github.com/jazzband/pip-tools/issues/1300>`_).
Contributed by Sorin Sbarnea in `472 <https://github.com/pytest-dev/pytest-cov/pull/472>`_.
* Documented ``show_contexts``.
Contributed by Brian Rutledge in `473 <https://github.com/pytest-dev/pytest-cov/pull/473>`_.

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 #78 (3102d4e) into master (d6f739f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #78   +/-   ##
=======================================
  Coverage   67.85%   67.85%           
=======================================
  Files           2        2           
  Lines          56       56           
=======================================
  Hits           38       38           
  Misses         18       18           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d6f739f...3102d4e. Read the comment docs.

[aragilar]

bors r+

[bors]

Build succeeded:

• aragilar.stringtopy
• codecov/patch
• codecov/project