Bump django from 3.0.7 to 3.1.12 in /examples/yoti_example_django

Bumps [django](https://github.com/django/django) from 3.0.7 to 3.1.12.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.0.7...3.1.12)

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

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

Author: dependabot[bot]

examples/yoti_example_django/requirements.txt

@@ -4,29 +4,63 @@
 #
 #    pip-compile --output-file=requirements.txt requirements.in
 #
-asgiref==3.2.9            # via django
-asn1==2.2.0               # via yoti
-certifi==2018.4.16        # via requests
-cffi==1.14.0              # via cryptography
-chardet==3.0.4            # via requests
-cryptography==3.2         # via pyopenssl, yoti
-deprecated==1.2.10        # via yoti
-django-sslserver==0.22    # via -r requirements.in
-django==3.0.7             # via -r requirements.in, django-sslserver
-future==0.16.0            # via yoti
-idna==2.7                 # via requests
-iso8601==0.1.13           # via yoti
-protobuf==3.6.0           # via yoti
-pycparser==2.18           # via cffi
-pyopenssl==18.0.0         # via yoti
-python-dotenv==0.8.2      # via -r requirements.in
-pytz==2018.4              # via django
-requests==2.21.0          # via -r requirements.in, yoti
-six==1.11.0               # via cryptography, protobuf, pyopenssl
-sqlparse==0.3.0           # via django
-urllib3==1.24.2           # via -r requirements.in, requests
-wrapt==1.12.1             # via deprecated
-yoti==2.13.0              # via -r requirements.in
+asgiref==3.4.1
+    # via django
+asn1==2.2.0
+    # via yoti
+certifi==2018.4.16
+    # via requests
+cffi==1.14.0
+    # via cryptography
+chardet==3.0.4
+    # via requests
+cryptography==3.2
+    # via
+    #   pyopenssl
+    #   yoti
+deprecated==1.2.10
+    # via yoti
+django==3.1.12
+    # via
+    #   -r requirements.in
+    #   django-sslserver
+django-sslserver==0.22
+    # via -r requirements.in
+future==0.16.0
+    # via yoti
+idna==2.7
+    # via requests
+iso8601==0.1.13
+    # via yoti
+protobuf==3.6.0
+    # via yoti
+pycparser==2.18
+    # via cffi
+pyopenssl==18.0.0
+    # via yoti
+python-dotenv==0.8.2
+    # via -r requirements.in
+pytz==2018.4
+    # via django
+requests==2.21.0
+    # via
+    #   -r requirements.in
+    #   yoti
+six==1.11.0
+    # via
+    #   cryptography
+    #   protobuf
+    #   pyopenssl
+sqlparse==0.3.0
+    # via django
+urllib3==1.24.2
+    # via
+    #   -r requirements.in
+    #   requests
+wrapt==1.12.1
+    # via deprecated
+yoti==2.13.0
+    # via -r requirements.in
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools