Restrict s_foolproof test execution on ArchLinux

[marcosbento]

Description

Restrict s_foolproof test execution on ArchLinux

Contributor Declaration

By opening this pull request, I affirm the following:

• All authors agree to the Contributor License Agreement.
• The code follows the project's coding standards.
• I have performed self-review and added comments where needed.
• I have added or updated tests to verify that my changes are effective and functional.
• I have run all existing tests and confirmed they pass.

🌦️ >> Documentation << 🌦️
https://sites.ecmwf.int/docs/dev-section/ecflow/pull-requests/PR-282

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 49.33%. Comparing base (70ef1c8) to head (ca3d9a6).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #282      +/-   ##
===========================================
+ Coverage    49.28%   49.33%   +0.04%     
===========================================
  Files         1233     1233              
  Lines        97801    97801              
  Branches     14874    14876       +2     
===========================================
+ Hits         48201    48248      +47     
+ Misses       49600    49553      -47     

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