BUGFIX: Desalination Application

[kmruehl]

Resolving WEC-Sim/WEC-Sim#918

Tests pass locally, not sure why they don't pass on the runner

[kmruehl]

@H0R5E any thoughts on what could be causing this issue?

[H0R5E]

@kmruehl, I can't test this locally, as I don't have a Simscape Fluids license. Can you retrigger the workflow? It was such a long time since it was last run that maybe something has changed with the MATLAB runners.

[H0R5E]

OK, getting a more informative error now:

  ================================================================================
  Error occurred in TestDesalination/testDesalination and it did not run to completion.
      ---------
      Error ID:
      ---------
      'SL_SERVICES:utils:STD_EXCEPTION'
      --------------
      Error Details:
      --------------
      Error using wecSim
      STD exception 'pmf::PreFormattedMessageException': 'Could not open file
      /home/runner/.matlab/R2022b/thisMatlab.pem. No such file or directory.' was
      caught.
      
      Error in TestDesalination/testDesalination (line 54)
                  wecSim
  ================================================================================

This looks like a permissions problem, so it's something to do with the MATLAB runner. I'll open an issue about it tomorrow.

[kmruehl]

The desal test case was failing locally, so I updated the slx case file. The desal test now passes locally, so let's see if that resolves the issue remotely.

[kmruehl]

refer to discussion here: WEC-Sim/WEC-Sim#918

The desal tests pass locally, but I was unable to resolve the issue on the runner. So, I went ahead and removed the desal test from the runner. It'll only be running locally from now on.