feat: should fail on not 2xx status code

[ThallesP]

Hey! I'm using this library to fetch market coins, but sometimes the coin gecko API fails with 503.

Instead of trying to return something, throwing an error would be a good option as the developer can handle that.

I've some questions now, there's the auto-retry option, when it fails, should it retry? If yes, should it retry only one time? Also, would be a good option to display the returned data? something like this:

throw new Error(`got invalid code. data: ${res.data}`)

[samuraitruong]

Thanks @ThallesP t merged now