feat(python!): Always return Series from from_arrow(<ArrowStreamExportable>)

[nameexhaustion]

• Fixes Change from_arrow to always return Series from ArrowStreamExportables #24511

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.59%. Comparing base (41a50ab) to head (74ee9e5).
⚠️ Report is 60 commits behind head on 2.0.

Files with missing lines	Patch %	Lines
py-polars/src/polars/convert/general.py	50.00%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.0   #28443      +/-   ##
==========================================
- Coverage   81.65%   81.59%   -0.06%     
==========================================
  Files        1868     1868              
  Lines      262363   262391      +28     
  Branches     3170     3174       +4     
==========================================
- Hits       214235   214109     -126     
- Misses      47301    47454     +153     
- Partials      827      828       +1     

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