Consider moving from ryu to lexical-core for string formatting / casting floats to string.

[Dandandan]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

We mostly use lexical-core for parsing and formatting numbers. In #5401 usage of ryu (instead of std formatter) was added to speed up float casting. However, lexical-core also has implemented some performance improvements / new algorithms to speed up number formatting.

See https://github.com/Alexhuszagh/rust-lexical?tab=readme-ov-file#benchmarks--write-float for latest comparison.

Describe the solution you'd like

Test lexical-core again for speed to potentially remove the usage of ryu and maybe some performance gain.

Describe alternatives you've considered

Additional context

[Dandandan]

this was still 15% slower for me