chore: polygpt update to include gpt4

[rihp]

Background

Updating PolyGPT to use GPT4

Changes

PR Quality Checklist

• I have run the following commands against my code to ensure it passes our linters:

  black . --exclude test.py
  isort .
  mypy .
  autoflake --remove-all-unused-imports --recursive --ignore-init-module-imports --ignore-pass-after-docstring --in-place agbenchmark

[github-actions]

PR Analysis

• 🎯 Main theme: Updating the PolyGPT agent to use GPT4
• 📌 Type of PR: Enhancement
• ✨ Focused PR: Yes, the PR is focused on updating the PolyGPT agent to use GPT4.
• 🔒 Security concerns: No security concerns found

PR Feedback

• General suggestions: The PR seems straightforward and focused on updating the PolyGPT agent to use GPT4. However, it would be beneficial to include tests to ensure the new GPT4 model works as expected within the PolyGPT agent.

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