Wrong Analysis submodule commit lead to submit-loaders crash

In the current SCALPEL-Analysis submodule version, Cohort don't have a `.cache()` method, which is called in `load_convsccs.py`:

```base_cohort = get_subjects(md, parameters).cache()
    outcomes = get_fractures(md, parameters).cache()
    followup = get_the_followup(md, parameters).cache()```

hence an error