build(deps): Update polars requirement from <=1.27.1 to <=1.31.0

[dependabot]

Updates the requirements on polars to permit the latest version.

Release notes

Sourced from polars's releases.

Python Polars 1.31.0

💥 Breaking changes

• Remove old streaming engine (#23103)

⚠️ Deprecations

• Deprecate allow_missing_columns in scan_parquet in favor of missing_columns (#22784)

🚀 Performance improvements

• Improve streaming groupby CSE (#23092)
• Move row index materialization in post-apply to occur after slicing (#22995)
• Add first_(true|false)_idx to BooleanChunked and use in bool arg_(min|max) (#22907)
• Don't go through row encoding for most types on index_of (#22903)
• Optimise low-level null scans and arg_max for bools (when chunked) (#22897)
• Optimize multiscan performance (#22886)

✨ Enhancements

• DataType expressions in Python (#23167)
• Native implementation for Iceberg positional deletes (#23091)
• Remove old streaming engine (#23103)
• Basic implementation of DataTypeExpr in Rust DSL (#23049)
• Add required: bool to ParquetFieldOverwrites (#23013)
• Support serializing name.map_fields (#22997)
• Support serializing Expr::RenameAlias (#22988)
• Remove duplicate verbose logging from FetchedCredentialsCache (#22973)
• Add keys column in finish_callback (#22968)
• Add extra_columns parameter to scan_parquet (#22699)
• Add CORR function to polars SQL (#22690)
• Add per partition sort and finish callback to sinks (#22789)
• Support descendingly-sorted values in search_sorted() (#22825)
• Derive DSL schema (#22866)

🐞 Bug fixes

• Remove axis in show_graph (#23218)
• Remove axis ticks in show_graph (#23210)
• Restrict custom aggregate_function in pivot to pl.element() (#23155)
• Don't leak SourceToken in in-memory sink linearize (#23201)
• Fix panic reading empty parquet with multiple boolean columns (#23159)
• Raise ComputeError instead of panicking in truncate when mixing month/week/day/sub-daily units (#23176)
• Materialize list.eval with unknown type (#23186)
• Only set sorting flag for 1st column with PQ SortingColumns (#23184)
• Typo in AExprBuilder (#23171)
• Null return from var/std on scalar column (#23158)
• Support Datetime broadcast in list.concat (#23137)
• Ensure projection pushdown maintains right table schema (#22603)
• Add Null dtype support to arg_sort_by (#23107)

... (truncated)

Commits

• 6e02c20 Python Polars 1.31.0 (#23226)
• 5c154c8 chore: Change flake to use venv (#23219)
• f0ae4d3 fix(python): Remove axis in show_graph (#23218)
• bc974eb Revert "fix(python): Don't call unnest for objects implementing `__arrow_c_ar...
• 171c847 fix(python): Remove AXIS ticks in show_graph (#23210)
• d4da872 fix: Restrict custom aggregate_function in pivot to pl.element() (#23155)
• 455423c fix: Don't leak SourceToken in in-memory sink linearize (#23201)
• 7c2c513 chore: Add default_alloc feature to py-polars (#23202)
• 383f1b3 Python Polars 1.31.0 pre-release (#23192)
• 6891fec fix: Fix panic reading empty parquet with multiple boolean columns (#23159)
• Additional commits viewable in compare view

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.65%. Comparing base (382de8e) to head (6805d11).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #329      +/-   ##
==========================================
+ Coverage   67.22%   67.65%   +0.43%     
==========================================
  Files          37       37              
  Lines        3240     3240              
==========================================
+ Hits         2178     2192      +14     
+ Misses       1062     1048      -14     

see 1 file with indirect coverage changes

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[dependabot]

Superseded by #333.