Bump dj-database-url from 2.0.0 to 2.1.0

Bumps [dj-database-url](https://github.com/jazzband/dj-database-url) from 2.0.0 to 2.1.0.
- [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@v2.0.0...v2.1.0)

---
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/base.txt

@@ -1,6 +1,6 @@
 Django[bcrypt]==4.2.4
 django-bootstrap3==23.4
-dj-database-url==2.0.0
+dj-database-url==2.1.0
 dj-static==0.0.6
 django-admin-csvexport==2.2
 django-csp==3.7