chore(deps): bump dj-database-url from 1.3.0 to 2.0.0

Bumps [dj-database-url](https://github.com/jazzband/dj-database-url) from 1.3.0 to 2.0.0.
- [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@v1.3.0...v2.0.0)

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

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

requirements/base.txt

@@ -1,6 +1,6 @@
 -i https://pypi.org/simple
 docutils==0.20
-dj-database-url==1.3.0
+dj-database-url==2.0.0
 django-debug-toolbar==4.0.0
 Django==4.2.1
 djangorestframework==3.14.0