[12.x] Bus::assertBatched() with array

[gdebrauwer]

A follow-up to #58606.

This PR makes it possible to provide an array to the assertBatched method (similar to the assertChained method). This will then trigger the use of the hasJobs method on the PendingBatchFake class that I introduced in #58606.

Bus::assertBatched([
    new FooJob(),
    new BarJob(),
    new BazJob(),
]);