Bump validators from 0.20.0 to 0.22.0

Bumps [validators](https://github.com/python-validators/validators) from 0.20.0 to 0.22.0.
- [Release notes](https://github.com/python-validators/validators/releases)
- [Changelog](https://github.com/python-validators/validators/blob/master/CHANGES.md)
- [Commits](https://github.com/python-validators/validators/compare/0.20.0...0.22.0)

---
updated-dependencies:
- dependency-name: validators
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -6,7 +6,7 @@ pytz==2022.7.1
 sqlparse==0.4.4
 requests==2.28.2
 python-slugify==8.0.1
-validators==0.20.0
+validators==0.22.0
 python-memcached==1.59
 password_strength==0.0.3.post2
 django-utils-six==2.0