Bump bleach from 2.1.3 to 3.1.1 in /requirements/windows
Bump bleach from 2.1.3 to 3.1.1 in /requirements/windows

Bumps [bleach](https://github.com/mozilla/bleach) from 2.1.3 to 3.1.1.
- [Release notes](https://github.com/mozilla/bleach/releases)
- [Changelog](https://github.com/mozilla/bleach/blob/master/CHANGES)
- [Commits](https://github.com/mozilla/bleach/compare/v2.1.3...v3.1.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
tiagoarasilva/django-boilerplate,tiagoarasilva/django-boilerplate