Bump dj-database-url from 2.1.0 to 2.2.0

Bumps [dj-database-url](https://github.com/jazzband/dj-database-url) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/jazzband/dj-database-url/releases)
- [Changelog](https://github.com/jazzband/dj-database-url/blob/master/CHANGELOG.md)
- [Commits](jazzband/dj-database-url@v2.1.0...v2.2.0)

---
updated-dependencies:
- dependency-name: dj-database-url
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -46,7 +46,7 @@ defusedxml==0.7.1
     #   python3-openid
     #   social-auth-core
     #   willow
-dj-database-url==2.1.0
+dj-database-url==2.2.0
     # via -r requirements.in
 django==4.2.11
     # via