build(deps): bump polars from 1.41.2 to 1.42.1

[dependabot]

Bumps polars from 1.41.2 to 1.42.1.

Release notes

Sourced from polars's releases.

Python Polars 1.42.1

⚠️ Deprecations

• Deprecate strict parameter of pl.concat, replace with new how='horizontal_extend' (#27965)

🚀 Performance improvements

• Add a sampled resolve mode for multi-file parquet metadata (#28111)
• Speed up small dtype series sums with a upcast sum kernel (#27958)
• Don't block on path expansion (#28073)

✨ Enhancements

• Close ResourceWarning leaks in database tests (#28066)

🐞 Bug fixes

• Incorrect sorted fast-path returning nan for grouped max (#28129)
• Fix panic on scan_parquet filter of fixed-size binary column (#28122)
• Fix decimal dynamic float cast (#28126)
• Fix pyiceberg key dot HDFS prefix filter (#28109)
• Fix projection pushdown panic on select(len()) after groupby (#28108)
• Fully resolve remaining ResourceWarning leaks in database/iceberg tests (#28107)
• Expiry time loading for AWS DeferredRefreshableCredentials (#28099)
• Close ResourceWarning leaks in database tests (#28066)
• Avoid panic on temporal extraction for datetime columns with nulls (#28054)
• Prevent panic in replace when old/new contain Expr or object dtype values (#27433)

📖 Documentation

• Fix dataset regression in the examples (#28131)
• Emphasize to generally not ever write Rust tests (#28082)
• Mention Polars skill in User Guide's LLM section (#28113)

🛠️ Other improvements

• Disallow usage of tokio::spawn in clippy (#28123)
• Improve Makefile with respect to venv robustness (#28110)
• Remove legacy prelude glob imports from leaf files (#28114)
• Skip pandas 3.0.4 due to pd.TimeDelta segfault (#28125)
• Update mypy to the new 2.x release (#28116)
• Ensure pyrefly checks run as part of make pre-commit (#28095)
• Fix test_select_explode_height_filter_order_by failure when POLARS_MAX_THREADS=2 (#28090)
• Add Morsel::height (#28060)

Thank you to all our contributors for making this release possible! @​0guban0v, @​Kevin-Patyk, @​TNieuwdorp, @​alexander-beedie, @​azimafroozeh, @​dsprenkels, @​kdn36, @​nameexhaustion, @​orlp, @​raphaelroshan, @​ritchie46 and @​sar-cheng

Python Polars 1.42.0

⚠️ Deprecations

... (truncated)

Commits

• 0df0c25 Python Polars 1.42.1 (#28128)
• 876bfb8 docs: Fix dataset regression in the examples (#28131)
• 07560f7 chore(rust): Disallow usage of tokio::spawn in clippy (#28123)
• aa5d073 fix: Incorrect sorted fast-path returning nan for grouped max (#28129)
• a2f2559 docs: Emphasize to generally not ever write Rust tests (#28082)
• 156e7f5 chore(python): Improve Makefile with respect to venv robustness (#28110)
• fc09271 fix: Fix panic on scan_parquet filter of fixed-size binary column (#28122)
• 3dce32b docs: Mention Polars skill in User Guide's LLM section (#28113)
• bd27f24 refactor(rust): Remove legacy prelude glob imports from leaf files (#28114)
• 853a398 fix: Fix decimal dynamic float cast (#28126)
• Additional commits viewable in compare view

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[codspeed-hq]

Merging this PR will regress 1 benchmark

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 2 improved benchmarks
❌ 1 regressed benchmark
✅ 172 untouched benchmarks
⏩ 175 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Memory	test_to_lp[rolling-severity=0]	2.1 MB	2.9 MB	-28.3%
⚡	Memory	test_to_lp[milp-n=50]	2.6 MB	2 MB	+31.08%
⚡	Memory	test_to_lp[merge_balance-severity=0]	3.2 MB	2.6 MB	+21.67%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing dependabot/pip/polars-1.42.1 (466c81b) with master (d610692)²}

Footnotes

1. 175 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on master (0f6cdad) during the generation of this report, so d610692 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩