Bump django-countries from 7.1 to 7.2.1
Bump django-countries from 7.1 to 7.2.1

Bumps [django-countries](https://github.com/SmileyChris/django-countries) from 7.1 to 7.2.1.
- [Release notes](https://github.com/SmileyChris/django-countries/releases)
- [Changelog](https://github.com/SmileyChris/django-countries/blob/master/CHANGES.rst)
- [Commits](https://github.com/SmileyChris/django-countries/compare/v7.1...v7.2.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
WikipediaLibrary/TWLight,WikipediaLibrary/TWLight,WikipediaLibrary/TWLight,WikipediaLibrary/TWLight,WikipediaLibrary/TWLight