[Bug] Missing Error Handling of all API requests

[qhenkart]

Is this a new bug?
In other words: Is this an error, flaw, failure or fault? Please search Github issues and check our Community Forum to see if someone has already reported the bug you encountered.

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• [X ] I believe this is a new bug
• [X ] I have searched the existing Github issues and Community Forum, and I could not find an existing post for this bug

Describe the bug
I don't think this was ever working. The API provides clear documentation on how errors are handled by the API, but the SDK does not format errors. Despite having the code for it

Looking through the internals, all of the IndexConnection API abstractions return an unformatted error returned directly
https://github.com/pinecone-io/go-pinecone/blob/main/pinecone/index_connection.go
that directly return the generated internals instead of parsing it through the shared PineconeError struct

Only the Index API calls return a properly formatted error and randomly two of the Index_connection calls.

Steps to reproduce the issue locally
make a call that resolves to an error in any of the SDK index_connection methods. Note that there is no error formatting or error handling. Leaving the consumer to resolve to string matching

Environment

• OS Version: N/A
• Go version: N/A
• Go SDK version: Latest