Bump django from 2.2 to 2.2.24

Bumps [django](https://github.com/django/django) from 2.2 to 2.2.24.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@2.2...2.2.24)

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

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

Author: dependabot[bot]

requirements.txt

@@ -3,7 +3,7 @@ beautifulsoup4==4.7.1
 cachetools==3.1.0
 certifi==2019.3.9
 chardet==3.0.4
-Django==2.2.20
+Django==2.2.24
 django-htmlmin==0.11.0
 geographiclib==1.49
 geopy==1.19.0