Python wheel: minor fix

[tmi]

Minor fix in the bash script for wheel building

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.69%. Comparing base (ade4e92) to head (8b51b3c).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #190   +/-   ##
========================================
  Coverage    64.69%   64.69%           
========================================
  Files         1107     1107           
  Lines        56064    56064           
  Branches      4235     4235           
========================================
+ Hits         36268    36269    +1     
+ Misses       19796    19795    -1     

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[simondsmart]

This looks like something quite nasty in there is failing in the CI?

[github-actions]

Private downstream CI failed.
Workflow name: private-downstream-ci
View the logs at https://github.com/ecmwf/private-downstream-ci/actions/runs/14864359822.