Update django-crispy-forms requirement from ~=2.0 to ~=2.1

Updates the requirements on [django-crispy-forms](https://github.com/django-crispy-forms/django-crispy-forms) to permit the latest version.
- [Release notes](https://github.com/django-crispy-forms/django-crispy-forms/releases)
- [Changelog](https://github.com/django-crispy-forms/django-crispy-forms/blob/main/CHANGELOG.md)
- [Commits](django-crispy-forms/django-crispy-forms@2.0...2.1)

---
updated-dependencies:
- dependency-name: django-crispy-forms
  dependency-type: direct:production
...

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

requirements.txt

@@ -14,7 +14,7 @@ django-recaptcha~=3.0.0
 Django==4.1.9
 django-activity-stream==1.4.2
 django-axes==6.1.1
-django-crispy-forms~=2.0
+django-crispy-forms~=2.1
 crispy-bootstrap4==2022.1
 django-simple-history~=3.4
 django-email-verification~=0.3.3