Add support for GPT-4o

[vishnuravi]

Add support for GPT-4o

⚙️ Release Notes

• Lifts OpenAI package version to 0.2.9.
• Adds GPT-4O to model options in onboarding via LLMOpenAIModelOnboardingStep.
• Replaces deprecated gpt4-turbo-preview model with gpt4-turbo

📝 Code of Conduct & Contributing Guidelines

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• I agree to follow the Code of Conduct and Contributing Guidelines.

[PSchmiedmayer]

Thank you @vishnuravi; looks great!

Would be good to check why the UI tests are failing?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 31.18%. Comparing base (94f14f6) to head (ad1fdb8).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #57   +/-   ##
=======================================
  Coverage   31.18%   31.18%           
=======================================
  Files          67       67           
  Lines        3012     3012           
=======================================
  Hits          939      939           
  Misses       2073     2073           

Files	Coverage Δ
...enAI/Onboarding/LLMOpenAIModelOnboardingStep.swift	100.00% <ø> (ø)

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[philippzagar]

Thanks @vishnuravi! 🚀