Python Polars 0.18.13

⚠️ Deprecations

• Rename LazyFrame.read/write_json to de/serialize (#10238)
• Add categorical_as_str parameter to testing utils (#10350)

🚀 Performance improvements

• don't parallelize literal expressions (#10321)

✨ Enhancements

• support selectors in additional frame methods (#10255)
• Add Series.cat.uses_lexical_ordering (#10325)
• utility to get buffers and pointers (#10331)
• improve datetime parsing error message (#10332)
• add ptr for small integer types (#10330)
• add offsets utility (#10328)
• allow sequential runners in select/with_columns (#10322)
• warn about inefficient apply json.loads if json is local import (#10310)
• improve err msg parsing time, date, datetime (#10298)
• Add categorical_as_str parameter to testing utils

🐞 Bug fixes

• fix oob in 'last' (#10329)
• show inefficient apply warning in ipython (#10312)
• add cse to no_optimization in profile (#10317)
• fix categorical lexical sort (#10318)
• Fix join validation (#10257)
• Set correct dtype for .extract_groups() (#10306)

Thank you to all our contributors for making this release possible!
@CanglongCl, @JulianCologne, @MarcoGorelli, @alexander-beedie, @cmdlineluser, @eltociear, @orlp, @ritchie46 and @stinodego