Update ansible to 2.7.4

[pyup-bot]

This PR updates ansible from 2.4.3.0 to 2.7.4.

Changelog

Links

• PyPI: https://pypi.org/project/ansible
• Changelog: https://pyup.io/changelogs/ansible/
• Homepage: https://ansible.com/

[codecov-io]

Codecov Report

Merging #362 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #362   +/-   ##
=======================================
  Coverage   36.06%   36.06%           
=======================================
  Files          30       30           
  Lines        3031     3031           
=======================================
  Hits         1093     1093           
  Misses       1938     1938

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