Polars: py-0.19.11 Release

⚠️ Deprecations

• Rename shift parameter from periods to n (#11923)
• Fix Array data type initialization (#11907)

🚀 Performance improvements

• support multiple files in a single scan parquet node. (#11922)

✨ Enhancements

• improve error handling in scan_parquet and deal with file limits (#11938)
• support multiple files in a single scan parquet node. (#11922)
• error instead of panic in unsupported sinks (#11915)
• upcast int->float and date->datetime for certain Series comparisons (#11779)

🐞 Bug fixes

• avoid integer overflow in offsets_to_groups when bigidx is enabled (#11901)
• read_csv for empty lines (#11924)
• raise suitable error on invalid predicates passed to filter method (#11928)
• Fix Array data type initialization (#11907)
• set null_count on categorical append (#11914)
• predicate push-down remove predicate refers to alias for more branch (#11887)
• address DataFrame construction error with lists of numpy arrays (#11905)
• address issue with inadvertently shared options dict in read_excel (#11908)
• raise a suitable error from read_excel and/or read_ods when target sheet does not exist (#11906)

🛠️ Other improvements

• Fix typo in read_excel docstring (#11934)
• Fix docstring for diff methods (#11921)
• fix some typos and add polars-business to curated plugin list (#11916)
• add missing 'diagonal_relaxed' to pl.concat "how" param docstring signature (#11909)

Thank you to all our contributors for making this release possible! @LaurynasMiksys, @alexander-beedie, @mcrumiller, @reswqa, @ritchie46, @romanovacca, @shenker, @stinodego and @uchiiii