Fix zip file time

[kunitoki]

This pull request makes a small but important fix to how file times are written in ZIP archives. Specifically, it corrects the encoding of the seconds field to match the ZIP file specification, which requires seconds to be stored in two-second increments.

• Corrected the encoding of the seconds field in the ZipFile::Builder::Item::writeTimeAndDate method by shifting seconds right by one, ensuring compatibility with the ZIP file format.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.02%. Comparing base (5e9cddf) to head (047b96e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #92   +/-   ##
=======================================
  Coverage   73.01%   73.02%           
=======================================
  Files         547      547           
  Lines       53848    53848           
=======================================
+ Hits        39318    39323    +5     
+ Misses      14530    14525    -5     

Files with missing lines	Coverage Δ
modules/yup_core/zip/yup_ZipFile.cpp	85.40% <100.00%> (ø)

... and 2 files with indirect coverage changes

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