Bump django from 3.0.5 to 3.0.7

Bumps [django](https://github.com/django/django) from 3.0.5 to 3.0.7.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.0.5...3.0.7)

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

requirements.txt

@@ -1,7 +1,7 @@
 black==19.10b0
 django-db-geventpool==3.2.1
 django-environ==0.4.5
-django==3.0.5
+django==3.0.7
 gevent==1.4.0
 gunicorn==20.0.4
 ipython==7.13.0