Properly handle folder when performing zip operations

[anthonysena]

Make sure we properly set (and later reset) the current working directory when working with zip files.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.00%. Comparing base (6187132) to head (bce56c8).
⚠️ Report is 3 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #281      +/-   ##
===========================================
+ Coverage    97.82%   99.00%   +1.17%     
===========================================
  Files           16       16              
  Lines         4193     4743     +550     
===========================================
+ Hits          4102     4696     +594     
+ Misses          91       47      -44     

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