fix: Respect strictness in list constructor

[ritchie46]

fixes #18841

[codecov]

Codecov Report

Attention: Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review.

Project coverage is 79.88%. Comparing base (4dd272c) to head (e1ca130).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/polars-core/src/series/any_value.rs	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #18853      +/-   ##
==========================================
- Coverage   79.90%   79.88%   -0.02%     
==========================================
  Files        1519     1519              
  Lines      205831   205835       +4     
  Branches     2897     2897              
==========================================
- Hits       164464   164437      -27     
- Misses      40819    40850      +31     
  Partials      548      548              

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