Fix the skip for <3.9 leading zero ipv4 tests.

Author: Julian

jsonschema/tests/test_jsonschema_test_suite.py

@@ -91,9 +91,7 @@ def narrow_unicode_build(test):  # pragma: no cover
     allowed_leading_zeros = skip(
         message=message,
         subject="ipv4",
-        description=(
-            "leading zeroes are rejected, as they are treated as octals"
-        ),
+        description="invalid leading zeroes, as they are treated as octals",
     )
 else:
     def allowed_leading_zeros(test):  # pragma: no cover