The status error was embedded inside the new error constructed by
WaitForPodsResponding's get function, but not wrapped. Therefore
`apierrors.IsServiceUnavailable(err)` didn't find it and returned false -> no
retries.

Wrapping fixes this and Gomega formatting of the error remains useful:

	err := &errors.StatusError{}
	err.ErrStatus.Code = 503
	err.ErrStatus.Message = "temporary failure"

	err2 := fmt.Errorf("Controller %s: failed to Get from replica pod %s:\n%w\nPod status:\n%s",
		"foo", "bar",
		err, "some status")
	fmt.Println(format.Object(err2, 1))
        fmt.Println(errors.IsServiceUnavailable(err2))

=>

    <*fmt.wrapError | 0xc000139340>:
    Controller foo: failed to Get from replica pod bar:
    temporary failure
    Pod status:
    some status
    {
        msg: "Controller foo: failed to Get from replica pod bar:\ntemporary failure\nPod status:\nsome status",
        err: <*errors.StatusError | 0xc0001a01e0>{
            ErrStatus: {
                TypeMeta: {Kind: "", APIVersion: ""},
                ListMeta: {
                    SelfLink: "",
                    ResourceVersion: "",
                    Continue: "",
                    RemainingItemCount: nil,
                },
                Status: "",
                Message: "temporary failure",
                Reason: "",
                Details: nil,
                Code: 503,
            },
        },
    }

    true