Bump dj-database-url from 0.5.0 to 2.3.0

Bumps [dj-database-url](https://github.com/jazzband/dj-database-url) from 0.5.0 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@v0.5.0...v2.3.0)

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

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

requirements/base.txt

@@ -1,6 +1,6 @@
 bleach==5.0.0
 Django==3.2.15
-dj-database-url==0.5.0
+dj-database-url==2.3.0
 django-allauth==0.50.0
 django-contrib-comments==2.1.0
 django-extensions==3.1.5