Bump django from 2.0.4 to 2.2.24

Bumps [django](https://github.com/django/django) from 2.0.4 to 2.2.24.
- [Release notes](https://github.com/django/django/releases)
- [Commits](https://github.com/django/django/compare/2.0.4...2.2.24)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
...

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

requirements.txt

@@ -3,7 +3,7 @@ aiohttp==2.3.10
 aiovk==1.3.0
 async-timeout==2.0.1
 attrs==17.4.0
-Django==2.0.4
+Django==2.2.24
 multidict==4.1.0
 Pillow==5.1.0
 psycopg2-binary==2.7.4