Update py to 1.8.2

[pyup-bot]

This PR updates py from 1.8.1 to 1.8.2.

Changelog

1.8.2

==================

- On Windows, ``py.path.local``s which differ only in case now have the same
Python hash value. Previously, such paths were considered equal but had
different hashes, which is not allowed and breaks the assumptions made by
dicts, sets and other users of hashes.

Links

• PyPI: https://pypi.org/project/py
• Changelog: https://pyup.io/changelogs/py/
• Docs: https://py.readthedocs.io/

[codecov-commenter]

Codecov Report

Merging #81 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #81   +/-   ##
=======================================
  Coverage   58.07%   58.07%           
=======================================
  Files          12       12           
  Lines        1815     1815           
=======================================
  Hits         1054     1054           
  Misses        761      761           

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