[4.2.x] Refs #36535 -- Doc'd that docutils < 0.22 is required.

Backport of 9d9b3bc71702e4bd4b7f8e1602d83fd69f871e94 from stable/5.1.x.

docs/internals/contributing/writing-code/unit-tests.txt

@@ -284,7 +284,7 @@ dependencies:
 * :pypi:`asgiref` 3.6.0+ (required)
 * :pypi:`bcrypt`
 * :pypi:`colorama`
-* :pypi:`docutils`
+* :pypi:`docutils` <0.22
 * :pypi:`geoip2`
 * :pypi:`Jinja2` 2.11+
 * :pypi:`numpy`

docs/ref/contrib/admin/admindocs.txt

@@ -23,7 +23,8 @@ the following:
   your ``urlpatterns``. Make sure it's included *before* the
   ``'admin/'`` entry, so that requests to ``/admin/doc/`` don't get
   handled by the latter entry.
-* Install the docutils Python module (https://docutils.sourceforge.io/).
+* Install the docutils Python module version <0.22
+  (https://docutils.sourceforge.io/).
 * **Optional:** Using the admindocs bookmarklets requires
   ``django.contrib.admindocs.middleware.XViewMiddleware`` to be installed.
 

tests/requirements/py3.txt

@@ -4,7 +4,7 @@ argon2-cffi >= 19.2.0
 backports.zoneinfo; python_version < '3.9'
 bcrypt
 black == 23.12.1
-docutils
+docutils < 0.22
 geoip2; python_version < '3.12'
 jinja2 >= 2.11.0
 numpy; python_version < '3.12'