[TRI-1200] `@trigger.dev/stripe` triggers should not allow invalid events

[ericallam]

Currently we don't do any client-side filtering of events passed to triggers:

stripe.onPrice({ events: ["price.created", "this.is.invalid"] })

Other than TypeScript errors, nothing will stop the above trigger to attempt to register the this.is.invalid event, which will result in an error response from the Stripe API. We should filter these out (and print a warning) to prevent this issue.

_TRI-1200

[duckling69]

Hey @ericallam I'd like to work on this issue