Lesly update name instance

[Leslyp]

Summary by OpenAI

New Feature:

• Project renamed to "RedRover - An OpenAI ChatGPT-based PR reviewer and summarizer"
• Updated image in README.md
• Replaced all instances of "@openai" with "@RedRover" in src/review.ts
• Updated log messages

Chore:

• Changed default value of openai_heavy_model from 'gpt-3.5-turbo' to 'gpt-4'

🎉 RedRover, RedRover, we've made the switch over! 🚀
A new name, a fresh face, our project's got a makeover! 🌟
With GPT-4, we'll soar, reaching heights never seen before! 🦅

[github-actions]

🤖 OpenAI

The overall change renames the project to "RedRover" and updates the default AI model from 'gpt-3.5-turbo' to 'gpt-4'. This may impact the behavior and performance of the code, requiring a thorough review.

Files	Summary
README.md, src/review.ts	Updates project title, image, and replaces "@openai" with "@RedRover". Updates log messages accordingly.
action.yml	Changes the default value of openai_heavy_model from 'gpt-3.5-turbo' to 'gpt-4'.

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In the recent run, only the files that changed from the base of the PR and between 3e70a189d4b85f11a70daff12b7862d620f9d8b5 and 0da09f30f49be4258e50f7fccc346c31443af6e7 commits were reviewed.

Files not reviewed due to simple changes (2)

Skipped review in the recent run

• README.md
• src/review.ts