[BUG] wait_exponential_jitter is not the sub class of wait_exponential, can't set max retry count

[R0k1e]

Questions as title, this is source code. Version 9.0.0

class wait_exponential_jitter(wait_base):
    """Wait strategy that applies exponential backoff and jitter.

    It allows for a customized initial wait, maximum wait and jitter.

    This implements the strategy described here:
    https://cloud.google.com/storage/docs/retry-strategy

    The wait time is min(initial * 2**n + random.uniform(0, jitter), maximum)
    where n is the retry count.
    """

    def __init__(
        self,
        initial: float = 1,
        max: float = _utils.MAX_WAIT,  # noqa
        exp_base: float = 2,
        jitter: float = 1,
    ) -> None:
        self.initial = initial
        self.max = max
        self.exp_base = exp_base
        self.jitter = jitter

    def __call__(self, retry_state: "RetryCallState") -> float:
        jitter = random.uniform(0, self.jitter)
        try:
            exp = self.exp_base ** (retry_state.attempt_number - 1)
            result = self.initial * exp + jitter
        except OverflowError:
            result = self.max
        return max(0, min(result, self.max))