Bump django-storages from 1.7.1 to 1.7.2

Bumps [django-storages](https://github.com/jschneier/django-storages) from 1.7.1 to 1.7.2.
- [Release notes](https://github.com/jschneier/django-storages/releases)
- [Changelog](https://github.com/jschneier/django-storages/blob/master/CHANGELOG.rst)
- [Commits](jschneier/django-storages@1.7.1...1.7.2)

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

requirements.txt

@@ -15,7 +15,7 @@ django-extensions==2.2.1
 django-getenv==1.3.2
 django-ipware==2.1.0
 django-ses==0.8.10
-django-storages==1.7.1
+django-storages==1.7.2
 djangorestframework==3.10.2
 # dnspython3==1.15.0
 facebook-sdk==3.1.0