fix: update the example of workflow streaming output data chunks

web/app/components/develop/template/template_workflow.en.mdx

@@ -90,7 +90,7 @@ Workflow applications offers non-session support and is ideal for translation, a
     Each streaming chunk starts with `data:`, separated by two newline characters `\n\n`, as shown below:
     <CodeGroup>
     ```streaming {{ title: 'Response' }}
-    data: {"event": "message", "task_id": "900bbd43-dc0b-4383-a372-aa6e6c414227", "id": "663c5084-a254-4040-8ad3-51f2a3c1a77c", "answer": "Hi", "created_at": 1705398420}\n\n
+    data: {"event": "text_chunk", "workflow_run_id": "b85e5fc5-751b-454d-b14e-dc5f240b0a31", "task_id": "bd029338-b068-4d34-a331-fc85478922c2", "data": {"text": "\u4e3a\u4e86", "from_variable_selector": ["1745912968134", "text"]}}\n\n
     ```
     </CodeGroup>
     The structure of the streaming chunks varies depending on the `event`:

web/app/components/develop/template/template_workflow.ja.mdx

@@ -93,7 +93,7 @@ import { Row, Col, Properties, Property, Heading, SubProperty, Paragraph } from
     各ストリーミングチャンクは`data:`で始まり、2つの改行文字`\n\n`で区切られます。以下のように表示されます：
     <CodeGroup>
     ```streaming {{ title: '応答' }}
-    data: {"event": "message", "task_id": "900bbd43-dc0b-4383-a372-aa6e6c414227", "id": "663c5084-a254-4040-8ad3-51f2a3c1a77c", "answer": "Hi", "created_at": 1705398420}\n\n
+    data: {"event": "text_chunk", "workflow_run_id": "b85e5fc5-751b-454d-b14e-dc5f240b0a31", "task_id": "bd029338-b068-4d34-a331-fc85478922c2", "data": {"text": "\u4e3a\u4e86", "from_variable_selector": ["1745912968134", "text"]}}\n\n
     ```
     </CodeGroup>
     ストリーミングチャンクの構造は`event`に応じて異なります：