feat: knowledge pipeline (#25360)

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api/tests/unit_tests/core/tools/workflow_as_tool/test_tool.py

@@ -17,7 +17,6 @@ def test_workflow_tool_should_raise_tool_invoke_error_when_result_has_error_fiel
         identity=ToolIdentity(author="test", name="test tool", label=I18nObject(en_US="test tool"), provider="test"),
         parameters=[],
         description=None,
-        output_schema=None,
         has_runtime_parameters=False,
     )
     runtime = ToolRuntime(tenant_id="test_tool", invoke_from=InvokeFrom.EXPLORE)