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] <support@github.com>

requirements.txt

@@ -4,7 +4,7 @@ backports.zoneinfo==0.2.1; python_version < "3.9"
 certifi==2024.2.2
 chardet==5.2.0
 charset-normalizer==3.3.2
-dj-database-url==2.1.0
+dj-database-url==2.2.0
 Django==4.2.13
 gunicorn==22.0.0
 idna==3.7