fix: Don't trigger length check in array construction

[ritchie46]

fixes #20200

[codecov]

Codecov Report

Attention: Patch coverage is 91.39785% with 8 lines in your changes missing coverage. Please review.

Project coverage is 79.62%. Comparing base (c92612a) to head (2b792ae).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
py-polars/polars/series/utils.py	70.00%	3 Missing ⚠️
crates/polars-core/src/chunked_array/mod.rs	91.66%	2 Missing ⚠️
...rc/chunked_array/logical/categorical/ops/append.rs	83.33%	1 Missing ⚠️
...ates/polars-core/src/chunked_array/ops/chunkops.rs	91.66%	1 Missing ⚠️
...s/polars-plan/src/dsl/function_expr/range/utils.rs	80.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main   #20205    +/-   ##
========================================
  Coverage   79.62%   79.62%            
========================================
  Files        1564     1565     +1     
  Lines      217989   218187   +198     
  Branches     2477     2475     -2     
========================================
+ Hits       173564   173741   +177     
- Misses      43857    43879    +22     
+ Partials      568      567     -1     

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