Update polars requirement from 0.42.0 to 0.43.1

[dependabot[bot]]

Updates the requirements on polars to permit the latest version.

Release notes

Sourced from polars's releases.

Rust Polars 0.43.1

🐞 Bug fixes

• Revert automatically turning on Parquet prefiltered (#18720)
• Parquet prefiltered with projection pushdown (#18714)
• Correctly display multilevel nested Arrays (#18687)
• Fix scalar literals (#18707)
• Missing activation for serde for PlSmallStr from some crates (#18702)
• Add missing PhantomDatas to BackingStorage (#18699)
• Fix use of undeclared crate or module error (#18701)
• Refactor decompression checks and add support for decompressing JSON (#18536)
• Qcut all nulls panics (#18667)

🛠️ Other improvements

• Remove IR info from DSL (#18712)
• Refactor code into functions in new parquet source (#18711)
• Remove unused feature flags from polars-mem-engine (#18679)
• Remove hive_parts from DSL source (#18694)

Thank you to all our contributors for making this release possible! @​alexander-beedie, @​ankane, @​attila-lin, @​coastalwhite, @​eitsupi, @​nameexhaustion, @​ohanf, @​orlp, @​ritchie46 and @​yarimiz

Commits

• 54218e7 Python Polars 1.7.1 Rust Polars 0.43.1 (#18722)
• dddf0b7 fix: Revert automatically turning on Parquet prefiltered (#18720)
• 0e5e554 fix: Parquet prefiltered with projection pushdown (#18714)
• ca383a0 fix(rust): Correctly display multilevel nested Arrays (#18687)
• cdd64d0 chore: Remove IR info from DSL (#18712)
• 470d8c4 refactor(rust): Refactor code into functions in new parquet source (#18711)
• a66532d fix: Fix scalar literals (#18707)
• b0145cc refactor: Remove unused feature flags from polars-mem-engine (#18679)
• f7e168a fix(rust): fix async feature compile error (#18682)
• f69d6fe fix(rust): Missing activation for serde for PlSmallStr from some crates (...
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