Fix FileAndStageBindStatement type

[hd-o]

Description

Fix method types of FileAndStageBindStatement to () => instead of () => () =>

Docs: Execute a batch of SQL statements (multi-statement support)

Checklist

• Format code according to the existing code style (run npm run lint:check -- CHANGED_FILES and fix problems in changed code)
• Create tests which fail without the change (if possible)
• Make all tests (unit and integration) pass (npm run test:unit and npm run test:integration)
• Extend the README / documentation and ensure is properly displayed (if necessary)
• Provide JIRA issue id (if possible) or GitHub issue id in commit message

[github-actions]

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[hd-o]

I have read the CLA Document and I hereby sign the CLA