Removal of jl_stdout_obj broke r-juliacall

I mentioned it on this closed issue:
https://github.com/JuliaLang/julia/pull/53250#issuecomment-2429275901

I'm not sure if people saw it, not sure if people get notified if PR is closed, so opening here.

See alternative here:
https://github.com/Non-Contradiction/JuliaCall/pull/237

but the maintainer is absent... so it seems needs to be fixed in Julia. I was hoping in 1.11.2...