Bump wemake-python-styleguide from 0.15.1 to 0.15.2 (#66)

Bumps [wemake-python-styleguide](https://github.com/wemake-services/wemake-python-styleguide) from 0.15.1 to 0.15.2.
- [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@0.15.1...0.15.2)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

poetry.lock

@@ -47,7 +47,7 @@ typing-extensions = "^3.7"
 
 [tool.poetry.dev-dependencies]
 mypy = "^0.812"
-wemake-python-styleguide = "^0.15.1"
+wemake-python-styleguide = "^0.15.2"
 flake8-pytest = "^1.3"
 flake8-pytest-style = "^1.3.0"
 flake8-pyi = "^20.10"