Bump django from 3.1.12 to 3.1.14 in /examples/yoti_example_django

Bumps [django](https://github.com/django/django) from 3.1.12 to 3.1.14.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.1.12...3.1.14)

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

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

examples/yoti_example_django/requirements.txt

@@ -20,7 +20,7 @@ cryptography==3.2
     #   yoti
 deprecated==1.2.10
     # via yoti
-django==3.1.12
+django==3.1.14
     # via
     #   -r requirements.in
     #   django-sslserver