test: update exchange api test

tests/rpc/test_rpc_apiserver.py

@@ -2554,6 +2554,7 @@ def test_api_exchanges(botclient):
         "valid": True,
         "supported": True,
         "comment": "",
+        "comment_futures": ANY,
         "dex": False,
         "is_alias": False,
         "alias_for": None,
@@ -2571,6 +2572,7 @@ def test_api_exchanges(botclient):
         "supported": False,
         "dex": False,
         "comment": "",
+        "comment_futures": ANY,
         "is_alias": False,
         "alias_for": None,
         "trade_modes": [{"trading_mode": "spot", "margin_mode": ""}],
@@ -2583,6 +2585,7 @@ def test_api_exchanges(botclient):
         "supported": False,
         "dex": True,
         "comment": ANY,
+        "comment_futures": ANY,
         "is_alias": False,
         "alias_for": None,
         "trade_modes": [{"trading_mode": "spot", "margin_mode": ""}],