Bump django-activity-stream from 1.4.2 to 2.0.0

Bumps [django-activity-stream](https://github.com/justquick/django-activity-stream) from 1.4.2 to 2.0.0.
- [Release notes](https://github.com/justquick/django-activity-stream/releases)
- [Changelog](https://github.com/justquick/django-activity-stream/blob/main/docs/changelog.rst)
- [Commits](justquick/django-activity-stream@1.4.2...2.0.0)

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

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

requirements.txt

@@ -12,7 +12,7 @@ django-bootstrap-breadcrumbs2==1.0.0
 django-formtools~=2.4
 django-recaptcha~=3.0.0
 Django==4.1.9
-django-activity-stream==1.4.2
+django-activity-stream==2.0.0
 django-axes==6.1.1
 django-crispy-forms~=2.0
 crispy-bootstrap4==2022.1