Merge pull request #636 from jazzband/dependabot/pip/docs/_ext/djangodummy/django-4.2.20

Bump django from 4.2.18 to 4.2.20 in /docs/_ext/djangodummy

Author: bckohan

docs/_ext/djangodummy/requirements.txt

@@ -1,6 +1,6 @@
 # for readthedocs
 # Remaining requirements are picked up from setup.py
-Django == 4.2.18
+Django == 4.2.20
 django-extra-views == 0.14.0
 sphinxcontrib-django == 0.5.1
 sphinx_rtd_theme==2.0.0