WorkspacePublisher doesn't roll back when a PHP Error is thrown during publishing

Problem/Motivation

WorkspacePublisher::publish() wraps the entity save loop in a try / catch (\Exception $e) block that rolls back the open transaction, logs the exception via Error::logException(), and rethrows. PHP \Error subclasses (\TypeError, \AssertionError, \Error from assert(), etc.) are not subclasses of \Exception, so the catch block is bypassed when one is thrown from inside the closure (for example from a hook implementation or downstream service call invoked during $entity->save()).

Steps to reproduce

1. Track two entities in a workspace.
2. Trigger a \TypeError (or any \Error subclass) from hook_entity_presave() on the second of the two entities.
3. Call $workspace->publish().
4. Observe that the first entity's workspace revision was published to Live and no error was logged on the workspaces channel.

Proposed resolution

Widen the catch in WorkspacePublisher::publish() from \Exception to \Throwable. Error::logException() already accepts \Throwable, so no other change is required in the catch body.

Remaining tasks

Review.

User interface changes

Nope.

Introduced terminology

N/A

API changes

Nope.

Data model changes

Nope.

Release notes snippet

N/A