runtime error trying to deserialise non json responses

The Python API client throws a runtime exception while attempting to desialize a non json response. Note that, as described on the JavaScript API Client, we should **NOT** deserialise responses on those cases:

```js
isTimedOut || isNetworkError(response) || (~~(status / 100) !== 2 && ~~(status / 100) !== 4)
```

Source: https://github.com/algolia/algoliasearch-client-javascript/blob/master/packages/transporter/src/concerns/retryDecision.ts#L12.

Solution: Create a pull request that ensures that no `response.json()` is performed on the cases mentioned above.

Start in the Python API client's response handling and compare its behavior with the linked JavaScript retryDecision.ts logic. Verify that response.json() is skipped for timeouts, network errors, and non-2xx/non-4xx statuses; done means those cases no longer raise a deserialization exception.

Written by the indexing model from the issue text.