Bump wemake-python-styleguide from 0.7.0 to 0.7.1

Bumps [wemake-python-styleguide](https://github.com/wemake-services/wemake-python-styleguide) from 0.7.0 to 0.7.1.
- [Release notes](https://github.com/wemake-services/wemake-python-styleguide/releases)
- [Changelog](https://github.com/wemake-services/wemake-python-styleguide/blob/master/CHANGELOG.md)
- [Commits](wemake-services/wemake-python-styleguide@0.7.0...0.7.1)

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