Update simplejson to 3.16.1

[pyup-bot]

This PR updates simplejson from 3.16.0 to 3.16.1.

Changelog

3.16.1

* Added examples for JSON lines use cases
https://github.com/simplejson/simplejson/pull/236
* Add wheels for more Python versions and platforms
https://github.com/simplejson/simplejson/pull/234
https://github.com/simplejson/simplejson/pull/233
https://github.com/simplejson/simplejson/pull/231

Links

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

[pyup-bot]

Closing this in favor of #659