feat: Ruby SDK update for version 21.0.1

[ItzNotABug]

This PR contains updates to the Ruby SDK for version 21.0.1.

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Update SDK as per latest server specs, these include -

• Introduces Backups module for managing Database backups
• Introduces Organization module
• Introduce Account level keys, Backup Service & Models

[coderabbitai]

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch sync-sdks-with-cloud-specs

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