add config options

[harjotgill]

Summary by OpenAI

Release Notes

New Feature: This pull request adds new configuration options related to OpenAI API and improves the bot's performance. Users can now configure model selection, retries, timeout, and concurrency limit for the OpenAI API. The changes also include a new function to limit concurrency and improve chat session management during reviews.

[github-actions]

🤖 OpenAI

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The purpose of this pull request is to add new configuration options related to OpenAI API and improve the bot's performance. The changes include adding new inputs, replacing hardcoded values with options, and introducing a new function to limit concurrency.

File	Summary
action.yml, src/options.ts	New options added for OpenAI API configuration, including model selection, retries, timeout, and concurrency limit.
src/bot.ts	Two new options added to completionParams object, and a hardcoded value replaced with an option for timeoutMs.
src/main.ts	Six new config options related to OpenAI added, and one option related to temperature removed.
src/review.ts	limit function removed, and a new openai_concurrency_limit function added to limit concurrency. This function is used to generate summaries and reset chat sessions for each file while reviewing.

Overall, these changes aim to enhance the bot's performance and provide more flexibility in configuring the OpenAI API.

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