Avoid this test as well since it crashes intermittently with clients

less than 23c.

Author: anthony-tuininga

tests/test_3000_subscription.py

@@ -233,6 +233,8 @@ def test_3003_registerquery_returns(self):
             connection.unsubscribe(sub)
             connection.close()
 
+    @unittest.skipIf(test_env.get_client_version() < (23, 1),
+                     "crashes in older clients")
     def test_3004_repr(self):
         "3004 - test Subscription repr()"
         data = DMLSubscriptionData(5)