New polars breaks Nezha Loader due to changes in .str.json_decode() call

[mmantyla]

I have not determined the exact version. Polars polars-1.8.2 seems to still work. With current Nezha Loader
https://github.com/EvoTestOps/LogLead/blob/main/loglead/loaders/nezha.py

@jnyyssol I believe you ran some script to figure this out. Please report the version here.

You can run parsing speed demo that uses Nezha loader. I am sure there are others as well.
https://github.com/EvoTestOps/LogLead/blob/main/demo/parser_benchmark/parsing_speed.py

The call that gets broken
https://docs.pola.rs/api/python/stable/reference/expressions/api/polars.Expr.str.json_decode.html