Bump django-otp from 1.1.4 to 1.1.6

Bumps [django-otp](https://github.com/django-otp/django-otp) from 1.1.4 to 1.1.6.
- [Release notes](https://github.com/django-otp/django-otp/releases)
- [Changelog](https://github.com/django-otp/django-otp/blob/master/CHANGES.rst)
- [Commits](https://github.com/django-otp/django-otp/compare/v1.1.4...v1.1.6)

---
updated-dependencies:
- dependency-name: django-otp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -3,7 +3,7 @@ django-ckeditor==6.3.0
 django-phonenumber-field[phonenumbers]==7.0.2
 django-reversion==5.0.4
 django-xforwardedfor-middleware==2.0
-django-otp==1.1.4
+django-otp==1.1.6
 django-filter
 
 dj-database-url