port test fix from pymongo 4.9 (lost in conflict reso)

Author: bagerard

tests/test_connection.py

@@ -610,7 +610,10 @@ def test_connect_with_replicaset_via_kwargs(self):
         connection kwargs
         """
         c = connect(replicaset="local-rs")
-        assert c._MongoClient__options.replica_set_name == "local-rs"
+        if hasattr(c, "_MongoClient__options"):
+            assert c._MongoClient__options.replica_set_name == "local-rs"
+        else:  # pymongo >= 4.9
+            assert c._options.replica_set_name == "local-rs"
         db = get_db()
         assert isinstance(db, pymongo.database.Database)
         assert db.name == "test"