refactor(python): Ensure physical arguments to np ufuncs are rechunked

[orlp]

When using POLARS_AUTO_NEW_STREAMING .to_physical() can cause the output to be chunked.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 79.86%. Comparing base (8b65fe3) to head (1ccde17).
Report is 26 commits behind head on main.

Files with missing lines	Patch %	Lines
py-polars/polars/series/series.py	50.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #18471      +/-   ##
==========================================
+ Coverage   79.84%   79.86%   +0.02%     
==========================================
  Files        1498     1498              
  Lines      201933   201936       +3     
  Branches     2867     2868       +1     
==========================================
+ Hits       161228   161275      +47     
+ Misses      40159    40114      -45     
- Partials      546      547       +1     

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