- Set X-Pinecone-API-Version header for cloud API endpoints
- Ensure compatibility with Pinecone's latest API versioning

- Refactor base URL assignment to prioritize environment variable
- Ensure consistent base URL configuration for Pinecone index
- Maintain existing logging behavior for remote API usage

- Update PineconeIndex to handle both local and cloud Pinecone index configurations
- Add base_url default to Pinecone cloud API
- Improve logging for base URL selection
- Update documentation notebook to reflect new configuration approach

- Deleted `pinecone_local.py` and `10-pinecone-local.ipynb`
- Updated `pinecone.py` to handle both cloud and local Pinecone index scenarios
- Modified test files to use `PineconeIndex` instead of `PineconeLocalIndex`
- Updated GitHub Actions workflow to simplify Python version testing
- Improved error handling and host URL management in Pinecone index methods

refactor: linter + formatter

- Updated the constructor to retrieve the API key from environment variables if not provided.
- Added a validation step to ensure the API key is present, raising a ValueError if missing.
- Consolidated header management by using the instance's headers attribute for API requests, improving code clarity and maintainability.

- Removed the async_client attribute and its related initialization logic.
- Consolidated API key and headers setup into the constructor for clarity.
- Enhanced code readability by eliminating redundant code and improving structure.

- Replaced async_client with aiohttp.ClientSession for making asynchronous HTTP requests.
- Added headers for API requests to enhance security and compatibility.
- Simplified error handling by removing checks for async_client initialization.
- Improved code readability and maintainability by consolidating request logic.