Update django-storages to 1.6.5

[pyup-bot]

There's a new version of django-storages available.
You are currently using 1.6.4. I have updated it to 1.6.5

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

Changelog

1.6.5

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• Fix Django 1.11 regression with gzipped content being saved twice
  resulting in empty files (367, 371, 373_)
• Fix the mtime when gzipping content on S3Boto3Storage (374_)

.. _367: jschneier/django-storages#367
.. _371: jschneier/django-storages#371
.. _373: jschneier/django-storages#373
.. _374: jschneier/django-storages#374

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

Happy merging! 🤖

[codecov]

Codecov Report

Merging #156 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #156   +/-   ##
=======================================
  Coverage   68.99%   68.99%           
=======================================
  Files          40       40           
  Lines        1319     1319           
  Branches      107      107           
=======================================
  Hits          910      910           
  Misses        407      407           
  Partials        2        2

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