Integrate Gemini AI for Enhanced PR Content Generation

[alokemajumder]

Description

To expand our AI capabilities and provide more diverse insights into PR content, we should integrate Gemini AI. This addition will enhance the robustness and diversity of the PR summaries provided by our GitHub Action.

Expected Benefits

• Increased diversity in AI perspectives, potentially leading to richer and more comprehensive PR summaries.
• Users can leverage specific strengths of different AI models based on their unique requirements.

Tasks

• Research Gemini API capabilities and access requirements.
• Implement a new module in the existing Python script to communicate with Gemini API.
• Add necessary configuration options to manage API keys and other settings for Gemini.

Acceptance Criteria

• Gemini AI integration is confirmed working without disrupting existing functionalities.
• Documentation is updated to include information on how to configure and use Gemini AI in the workflow.