fix(docs): scope Python SQL agent review section (#2998)

Author: chen893

src/oss/langchain/sql-agent.mdx

@@ -451,6 +451,7 @@ agent = create_agent(
 
 :::
 
+:::python
 ## 6. Implement human-in-the-loop review
 
 It can be prudent to check the agent's SQL queries before they are executed for any unintended actions or inefficiencies.
@@ -546,6 +547,8 @@ The genre with the longest average track length is "Sci Fi & Fantasy" with an av
 
 Refer to the [human-in-the-loop guide](/oss/langchain/human-in-the-loop) for details.
 
+:::
+
 :::js
 ## 4. Execute SQL queries