Refs #31949 -- Mentioned @sensitive_variables/sensitive_post_parameters decorators in async topic.

Follow up to 38e391e95fe5258bc6d2467332dc9cd44ce6ba52.

docs/topics/async.txt

@@ -85,6 +85,8 @@ view functions:
 * :func:`~django.views.decorators.cache.never_cache`
 * :func:`~django.views.decorators.common.no_append_slash`
 * :func:`~django.views.decorators.csrf.csrf_exempt`
+* :func:`~django.views.decorators.debug.sensitive_variables`
+* :func:`~django.views.decorators.debug.sensitive_post_parameters`
 * :func:`~django.views.decorators.http.condition`
 * :func:`~django.views.decorators.http.etag`
 * :func:`~django.views.decorators.http.last_modified`