Update the behavior of 'delegate' according to:
https://github.com/WebAssembly/exception-handling/issues/176

Summary: delegate can target any block, which just rethrows to the next
outer try/catch.

R=clemensb@chromium.org

Bug: v8:8091
Change-Id: I967db9ab1cbb1a15b2c5e0a1a20f64fa19a3f769
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3140603
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76677}