Fix - File content

[gregszero]

This pull request includes changes to the get method in the HTTP module within the lib/openai/http.rb file. The main purpose of these changes is to improve error handling when parsing JSON responses to address issue #421

Error handling improvements:

• lib/openai/http.rb: Modified the get method to handle JSON::ParserError exceptions. If parsing the response body as JSON fails, the raw response body will be returned instead.

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there’s another PR addressing this issue, but since I found a solution that works for me, I believe the community could also benefit from this change