Update ScopedOperationsBatcher tasks with finalizers to propagate errors

The Run() method now returns RTCError instead of void. Tasks with a
finalizer, now return RTCError. Upon encountering an error while running
batched tasks on the target thread, the batcher will abort and return.
This is to align with how these operations are today applied in a non
batched manner. Already queued up finalizers will be invoked.

Adding new type declarations for the callbacks for improved readability:
SimpleBatchTask, FinalizerTask and BatchTaskWithFinalizer.

Bug: webrtc:42222804
Change-Id: I03150abcdcc4fed41b18de5033fdb256f5802822
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/460540
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#47288}