Bump django-recaptcha from 3.0.0 to 4.0.0

Bumps [django-recaptcha](https://github.com/torchbox/django-recaptcha) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/torchbox/django-recaptcha/releases)
- [Changelog](https://github.com/torchbox/django-recaptcha/blob/main/CHANGELOG.md)
- [Commits](django-recaptcha/django-recaptcha@3.0.0...4.0.0)

---
updated-dependencies:
- dependency-name: django-recaptcha
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements/base.txt

@@ -13,7 +13,7 @@ coreapi==2.3.3
 django-filter==22.1
 django-inline-svg==0.1.1
 django-ckeditor==6.7.0
-django-recaptcha==3.0.0
+django-recaptcha==4.0.0
 django-bootstrap-breadcrumbs==0.9.2
 
 # Web serving