[FEAT]: Return Octokit::TooManyRequests on 429 http error

[sarenrae-dev]

Describe the need

Currently when the github api returns a 403 error with a message about rate limits octokit returns Octokit::TooManyRequests

Ive realized that at the very least with the sbom endpoint the api actually returns a 429 error when you reach the rate limit.

as it currently stands this is handled by octokit by returning the more generic Octokit::ClientError.
Since you already have the Octokit::TooManyRequests error implemented, perhaps explicitely returning it on status code 429 could be helpful

SDK Version

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API Version

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[github-actions]

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