Reactivate Plexon 2 tests on Mac arm.

[h-mayorquin]

As discussed on #1192.

Let's monitor the test for a couple of merges.

[h-mayorquin]

@pauladkisson seems to be working here : /

Let's look at this across a couple of updates to see if the error re-appears.

[pauladkisson]

seems to be working here : /

What do you mean? This one is failing: macos-latest Python 3.10

[h-mayorquin]

seems to be working here : /

What do you mean? This one is failing: macos-latest Python 3.10

My bad, I spoke too soon. Ok. So, at least we can track it and fix it here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.39%. Comparing base (73252d8) to head (3ace2bd).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1195   +/-   ##
=======================================
  Coverage   90.39%   90.39%           
=======================================
  Files         133      133           
  Lines        8503     8508    +5     
=======================================
+ Hits         7686     7691    +5     
  Misses        817      817           

Flag	Coverage Δ
unittests	90.39% <ø> (+<0.01%)	⬆️

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