test(cli): rename unused variable in mock_call function

Author: agentscope-ai-java

tests/unit/test_cli_main.py

@@ -760,7 +760,7 @@ def test_deployments_create_exits_nonzero_when_status_poll_fails(
         self,
         monkeypatch,
     ):
-        def mock_call(**kwargs):
+        def mock_call(**_kwargs):
             return SimpleNamespace(
                 status_code=200,
                 output={"deployed_model": "deploy-1"},