Bump pytest from 4.5.0 to 4.6.0 (#5948)
Bump pytest from 4.5.0 to 4.6.0 (#5948)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/4.5.0...4.6.0)
pypa/warehouse,pypa/warehouse,pypa/warehouse,pypa/warehouse