fix umask

[deadc0de6]

fix umask in tests

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.47%. Comparing base (3814c9d) to head (fdf90c8).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #484      +/-   ##
==========================================
+ Coverage   89.44%   90.47%   +1.03%     
==========================================
  Files          23       23              
  Lines        4963     5437     +474     
==========================================
+ Hits         4439     4919     +480     
+ Misses        524      518       -6     

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