Update RAI images to /versions/2 in RAI notebooks

[tongyu-microsoft]

Description

Checklist

• [ ] I have read the contribution guidelines.
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• [ ] I have coordinated with the docs team ([email protected]) if this PR deletes files or changes any file names or file extensions.
• [ ] Pull request includes test coverage for the included changes.
• [ ] This notebook or file is added to the CODEOWNERS file, pointing to the author or the author's team.