fix: insert_stmt allow ; at the end of SQL.

[youngsofun]

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Summary

fix error like

 unable to parse rest of the sql, rest tokens:  [SemiColon(62..63), EOI(63..63), EOI(63..63)] \n\n"}

when insert ... file_format ... ends with ;

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

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This change is 

[github-actions]

🤖 Smart Auto-retry Analysis (Retry 5)

Workflow: 16417410161

📊 Summary

• Total Jobs: 80
• Failed Jobs: 1
• Retryable: 0
• Code Issues: 1

❌ NO RETRY NEEDED

All failures appear to be code/test issues requiring manual fixes.

🔍 Job Details

• ❌ linux / test_unit: Not retryable (Code/Test)

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