Fix linux detection on s390x

[ascopes]

Fixes GH-117

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.44%. Comparing base (958bb50) to head (bb8f6c1).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #118      +/-   ##
==========================================
- Coverage   84.72%   79.44%   -5.28%     
==========================================
  Files          23       23              
  Lines         746      744       -2     
  Branches       51       51              
==========================================
- Hits          632      591      -41     
- Misses         91      134      +43     
+ Partials       23       19       -4     

Files	Coverage Δ
...avenplugin/dependency/PlatformArtifactFactory.java	100.00% <ø> (ø)

... and 3 files with indirect coverage changes