fix: Correct output datatype of dt.year and dt.mil

[coastalwhite]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.28%. Comparing base (2308caa) to head (0bcbc9e).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #23646      +/-   ##
==========================================
- Coverage   81.39%   81.28%   -0.11%     
==========================================
  Files        1640     1641       +1     
  Lines      222752   223141     +389     
  Branches     2837     2837              
==========================================
+ Hits       181311   181389      +78     
- Misses      40742    41053     +311     
  Partials      699      699              

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