Update faker to 4.0.0

[pyup-bot]

This PR updates Faker from 3.0.0 to 4.0.0.

Changelog

4.0.0

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

* Breaking change: Remove support for end-of-life Python 2.7.

3.0.1

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**NOTE**: This is the last release to support Python 2.7.x.

* Add provider methods ``zip`` and ``tar`` for generating zip and tar files.
Thanks malefice.
* Add ``en-CA`` ``postcode_in_province()`` method. Thanks oeuftete.
* Update Address and Automotive provider for Russian locale. Thanks valestel.
* Add provider methods for dsv files: ``csv``, ``tsv``, ``psv`` and generic
``dsv``. Thanks malefice.
* Remove parenthesis from city name in ``de_DE`` ``address`` provider. Thanks
jerr0328.
* Add ``NIP`` generator in ``pl_PL``. Thanks IlfirinPL.
* Fix ``Faker.random_number`` intermittent exceptions. Thanks Jengah.

Links

• PyPI: https://pypi.org/project/faker
• Changelog: https://pyup.io/changelogs/faker/
• Repo: https://github.com/joke2k/faker

[codecov]

Codecov Report

Merging #761 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #761   +/-   ##
=======================================
  Coverage   97.08%   97.08%           
=======================================
  Files          54       54           
  Lines        2742     2742           
=======================================
  Hits         2662     2662           
  Misses         80       80

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