Remote error in write_benchmark_*

[JaGeo]

Currently, we still get the remote error for the write_benchmark job. This can be quite annoying for the iterative workflow.

I think the solution should be to put the "complete_bechmark*" job generation within one single job that returns a flow so that we can then link an ".output" to write_benchmark*. Currenly, the outputs are hidden within a list.