specs fail with rails 7.2

```
Failure:
Stripe::Callbacks::defined with a bang::if it raises an exception#test_0001_causes the whole webhook to fail [test/callbacks_spec.rb:53]:
RuntimeError expected but nothing was raised.

bin/rails test /home/runner/work/stripe-rails/stripe-rails/test/callbacks_spec.rb:52
```

https://github.com/tansengming/stripe-rails/actions/runs/10356875768/job/28667689299