Fixed CVE-2022-22818 -- Fixed possible XSS via {% debug %} template tag.

Thanks Keryn Knight for the report.

Co-authored-by: Adam Johnson <me@adamj.eu>

tests/template_tests/tests.py

@@ -1,6 +1,5 @@
 import sys
 
-from django.contrib.auth.models import Group
 from django.template import (
     Context, Engine, TemplateDoesNotExist, TemplateSyntaxError,
 )
@@ -163,15 +162,6 @@ class TemplateTestMixin:
         with self.assertRaises(NoReverseMatch):
             t.render(Context())
 
-    def test_debug_tag_non_ascii(self):
-        """
-        #23060 -- Test non-ASCII model representation in debug output.
-        """
-        group = Group(name="清風")
-        c1 = Context({"objs": [group]})
-        t1 = self._engine().from_string('{% debug %}')
-        self.assertIn("清風", t1.render(c1))
-
     def test_extends_generic_template(self):
         """
         #24338 -- Allow extending django.template.backends.django.Template