Update polars requirement from 0.41.1 to 0.42.0

[dependabot]

Updates the requirements on polars to permit the latest version.

Release notes

Sourced from polars's releases.

Rust Polars 0.42.0

💥 Breaking changes

• Reject literal input in sort_by_exprs() (#17606)

🚀 Performance improvements

• Skip parquet page when unneeded (#18192)
• Improve binview extend/ifthenelse (#18164)
• Start on better Parquet delta decoding (#18049)
• Tune jemalloc to not create muzzy pages (#18148)
• Reduce default async thread count (#18142)
• Use single threaded algorithms if only 1 core given (#18101)
• Use Arc<Vec<_>> instead of Arc<[_]> for paths and hive partitions (#18066)
• SIMD View from FixedSizeBinary (#18059)
• Use bitmask to filter Parquet predicate-pushdown items (#17993)
• Zerocopy buffers for FixedSizeBinary to BinaryView cast (#18043)
• Integer fast path Parquet dict encoding (#18030)
• Speedup writing of Parquet primitive values (#18020)
• Remove temporary allocations in Parquet (#18013)
• Delay selection expansion (#18011)
• Optimize strings slices (#17996)
• Make .dt.weekday 20x faster (#17992)
• Shrink MemSliceInner enum (#17991)
• Push down slice with non-zero offset to Parquet (#17972)
• Reduce copy in MemSlice (#17983)
• Ensure metadata flags are maintained on vertical parallelization (#17804)
• Ensure only nodes that are not changed are cached in collapse optimizer (#17791)
• Use bitflags for OptState (#17788)
• Remove async directory auto-detection (#17779)
• Fix accidental quadratic horizontal concat (#17783)
• Batch parquet integer decoding (#17734)
• Use mmap-ed memory if possible in Parquet reader (#17725)
• Use bitflags for function options (#17723)
• Introduce MemReader to file buffer in Parquet reader (#17712)
• Better GC and push_view for binviews (#17627)
• Fix pathological perf issue in window-order-by (#17650)
• Cache path resolving of scan functions (#17616)
• Add ArrayChunks to optimize codegen of BatchDecoder (#17632)
• Rechunk before we go into grouped gathers (#17623)
• Cache schema resolve back to DSL (#17610)
• Add fastpath for when rounding by single constant durations (#17580)
• Improve parallelism in writing hive parquet (#17512)
• Support datetime in predicate during hive partition pruning (#17545)
• Batch nested embed parquet decoding (#17549)
• Batch nested Parquet decoding (#17542)
• Collect Parquet dictionary binary as view (#17475)
• Keep more parallelism when CSE plan cache hits (#17463)
• Batch parquet primitive decoding (#17462)
• Respect allow_threading in some more operators (#17450)

... (truncated)

Commits

• 7686025 Rust Polars 0.42.0 (#18195)
• 92ccde6 perf: Skip parquet page when unneeded (#18192)
• 8ac52cf refactor(rust): Consistently use PlRandomState, PlHashMap/Set (#18190)
• d0475d7 Python Polars 1.5.0
• f25946d fix: Fix struct shift and list builder (#18189)
• f92f147 fix: Don't load Parquet nested metadata (#18183)
• 9b4bd7f fix: Throw bigidx error for Parquet row-count (#18154)
• 0276aec feat: Create literals for datetime/date expressions (#18184)
• 8111493 fix: Fix unpivot on empty df (#18179)
• ac30a25 feat: Create literals in 'datetime' expression (#18182)
• Additional commits viewable in compare view

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[ChristopherRabotin]

@dependabot rebase