Bump pytest-xdist from 1.20.1 to 1.21.0 in /{{cookiecutter.project_name}}
Bump pytest-xdist from 1.20.1 to 1.21.0 in /{{cookiecutter.project_name}}

Bumps [pytest-xdist](https://github.com/pytest-dev/pytest-xdist) from 1.20.1 to 1.21.0.
- [Changelog](https://github.com/pytest-dev/pytest-xdist/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest-xdist/compare/v1.20.1...v1.21.0)
wemake-services/wemake-django-template,wemake-services/wemake-django-template