fix: files are not compressed with ZIP_DEFLATED

[mayeut]

Fixes #366

[codecov]

Codecov Report

Merging #367 (1dd0172) into main (68aad23) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #367      +/-   ##
==========================================
+ Coverage   92.35%   92.36%   +0.01%     
==========================================
  Files          23       23              
  Lines        1256     1258       +2     
  Branches      307      307              
==========================================
+ Hits         1160     1162       +2     
  Misses         55       55              
  Partials       41       41              

Impacted Files	Coverage Δ
src/auditwheel/tools.py	93.93% <100.00%> (+0.18%)	⬆️

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