Bump dj-database-url from 2.2.0 to 2.3.0 (#759)

Bumps [dj-database-url](https://github.com/jazzband/dj-database-url) from 2.2.0 to 2.3.0.
- [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@v2.2.0...v2.3.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -2,7 +2,7 @@
 
 beautifulsoup4==4.12.3
 celery==5.4.0
-dj-database-url==2.2.0
+dj-database-url==2.3.0
 django-allauth==0.54.0
 django-bootstrap-form==3.4
 django-contrib-comments==2.2.0