lookup:unskip S390 from pino

[abhayagarwal-dev]

pino was skipped on AIX and S390x as part of issue 972
But based on the CI result, pino is passing for rhel9-S390x
CI:https://ci.nodejs.org/job/citgm-smoker-pipeline/300/
So, this pr unskip S390x from pino skipped list

Checklist

• npm test passes
• contribution guidelines followed
  here

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.20%. Comparing base (9e5f968) to head (de3b9a2).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1181   +/-   ##
=======================================
  Coverage   96.20%   96.20%           
=======================================
  Files          29       29           
  Lines        2213     2213           
=======================================
  Hits         2129     2129           
  Misses         84       84           

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