Bump django-registration from 1.0 to 3.1.2

Bumps [django-registration](https://github.com/ubernostrum/django-registration) from 1.0 to 3.1.2.
- [Release notes](https://github.com/ubernostrum/django-registration/releases)
- [Commits](ubernostrum/django-registration@1.0...3.1.2)

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

Author: dependabot[bot]

requirements-1.3.txt

@@ -38,7 +38,7 @@ django-nvd3==0.8.2
 django-pagination==1.0.7
 django-picklefield==0.2.1
 django-redis-cache==0.13.0
-django-registration==1.0
+django-registration==3.1.2
 django-simple-captcha==0.4.4
 django-suit==0.2.12
 django-timezones==0.2

requirements.txt

@@ -9,7 +9,7 @@ django-notes
 django-timezones==0.2
 django-jqchat
 crocodoc
-django-registration==0.8
+django-registration==3.1.2
 django-extra-views==0.6.5
 django-simple-captcha
 django-suit