Replace `utilz/csvtrim` with `meza`

[reubano]

https://github.com/reubano/csv2ofx/tree/main?tab=readme-ov-file#special-cases (CR: 13d2637)

[sphakka]

@reubano, you picked up the idea, great! Indeed, that was in my plans but you know meza much better than me.

Meanwhile, I have an improved version of csvtrim (actually made some months ago) that I'm about to push to my fork.