fix: unit tests and linter

Author: JoshParkSJ

src/uipath_langchain/agent/tools/tool_node.py

@@ -135,7 +135,7 @@ async def _afunc(self, state: AgentGraphState) -> OutputType:
                 inputs = self._prepare_wrapper_inputs(
                     self.awrapper, self.tool, call, state
                 )
-                
+
                 result = await self.awrapper(*inputs)
             else:
                 result = await self.tool.ainvoke(call)

tests/agent/tools/test_durable_interrupt.py

@@ -537,7 +537,7 @@ def start_job() -> str:
             return action()
 
         add_interrupt_offset()
-        result = start_job()
+        start_job()
 
         action.assert_called_once()
         mock_interrupt.assert_called_once_with("job-started")
@@ -646,7 +646,7 @@ def start_job() -> str:
 
         add_interrupt_offset()  # first confirmation
         add_interrupt_offset()  # second confirmation
-        result = start_job()
+        start_job()
 
         action.assert_called_once()  # idx=2, 2 < 2 → False → body runs
         mock_interrupt.assert_called_once_with("job-started")