fix: Knowledge base workflow document segmentation error

Author: shaohuzhang1

apps/application/flow/step_node/document_split_node/i_document_split_node.py

@@ -80,7 +80,7 @@ def get_node_params_serializer_class(self) -> Type[serializers.Serializer]:
         return DocumentSplitNodeSerializer
 
     def _run(self):
-        if [WorkflowMode.KNOWLEDGE, WorkflowMode.KNOWLEDGE_LOOP, WorkflowMode.TOOL,
+        if [WorkflowMode.APPLICATION, WorkflowMode.APPLICATION_LOOP, WorkflowMode.TOOL,
             WorkflowMode.TOOL_LOOP].__contains__(
             self.workflow_manage.flow.workflow_mode):
             return self.execute(**self.node_params_serializer.data, **self.flow_params_serializer.data,