w: move from chrono to jiff

[Bluemangoo]

• resolves w: move from chrono to jiff #760

[codecov]

Codecov Report

❌ Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 19.20%. Comparing base (960f8c6) to head (57c8dbb).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
src/uu/w/src/w.rs	0.00%	19 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #764   +/-   ##
=======================================
  Coverage   19.19%   19.20%           
=======================================
  Files          68       68           
  Lines       10157    10156    -1     
  Branches      546      546           
=======================================
  Hits         1950     1950           
+ Misses       8207     8206    -1     

Flag	Coverage Δ
macos_latest	6.75% <0.00%> (+<0.01%)	⬆️
ubuntu_latest	19.55% <0.00%> (+<0.01%)	⬆️
windows_latest	0.02% <0.00%> (+<0.01%)	⬆️

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