Bump django-debug-toolbar from 2.1 to 2.2.1

Bumps [django-debug-toolbar](https://github.com/jazzband/django-debug-toolbar) from 2.1 to 2.2.1.
- [Release notes](https://github.com/jazzband/django-debug-toolbar/releases)
- [Changelog](https://github.com/jazzband/django-debug-toolbar/blob/2.2.1/docs/changes.rst)
- [Commits](django-commons/django-debug-toolbar@2.1...2.2.1)

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

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

Pipfile

@@ -15,7 +15,7 @@ pytest-django = "==3.8.0"
 [packages]
 dj-database-url = "==0.5.0"
 django-configurations = "==2.2"
-django-debug-toolbar = "==2.1"
+django-debug-toolbar = "==2.2.1"
 django-extensions = "==2.2.5"
 Django = "==2.2.*"
 psycopg2-binary = "==2.8.4"