[view-transitions-1] Callback is invoked without required parameters

[Psychpsyo]

Invoking a callback function requires "a Web IDL arguments list args, exception behavior exceptionBehavior (either "report" or "rethrow"), and an optional callback this value thisArg"

Call the update callback, in step 5, says to "set callbackPromise to the result of invoking transition’s update callback."

This should be passing an arguments list and either "report" or "rethrow".
(currently, "rethrow" is the implied default, but it should be explicit at the callsite)