All integrations blocked on "16061 DNU when running ProfStef tests"

> We need to fix
>
> 16061 DNU when running ProfStef tests
> https://pharo.fogbugz.com/f/cases/16061/
>
>
> Running tests leads to a DNU in a forked process which is not a test failure but instead terminates all
> test runs on the build server as “success” as soon as the image quits due to the DNU.
>
> Marcus
>