Unwrap `registerServerReference` function (#70563)
In the same vein as #69190, where we already unwrapped `createServerReference`, we now also unwrap `registerServerReference`, which is required for React to select the right call stack frame when generating source locations for server actions (see facebook/react#30741).
Whereas unwrapping of `createServerReference` was required for server actions that are imported into client components, unwrapping `registerServerReference` is needed for server actions that are passed from server components to client components.
This does not fully enable the source mapping just yet. For this to work end-to-end, the next step is to generate proper spans in the SWC transform, which will be done in the next PR.
