perf(python): Add future arg to Series.to_arrow

[ruihe774]

There is a future argument in DataFrame.to_arrow, but it is missing in Series.to_arrow. This PR adds it. Series.to_arrow is used in pyo3-polars, and using future=True significantly improve its performance for e.g. string series.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.72%. Comparing base (120ec7f) to head (cc6d238).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #17371      +/-   ##
==========================================
- Coverage   80.72%   80.72%   -0.01%     
==========================================
  Files        1475     1475              
  Lines      193337   193383      +46     
  Branches     2760     2760              
==========================================
+ Hits       156079   156114      +35     
- Misses      36748    36759      +11     
  Partials      510      510              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.