`PD012` is outdated

[tjkuson]

First off, thank you for developing this plugin!

Is your feature request related to a problem? Please describe.

read_table is no longer deprecated in favour of read_csv following a discussion. As far as I can tell from reading the references in the given motivation, this means there is no longer a good reason to recommend read_csv over read_table per se.

Describe the solution you'd like

The rule should either be categorised as opinionated to require an opt-in (like PD901), removed, or changed to only emit a warning if read_table is called with sep="," (which is what ruff has just done).

[deppen8]

The original check was put in not necessarily because it was deprecated, but because using just one improves consistency and reduces cognitive load.

I really like this suggestion though:

only emit a warning if read_table is called with sep="," (which is what astral-sh/ruff#5807).

If someone wants to implement that, we should probably remove PD012 and create a new code, but much of the existing PD012 code can be reused, I think.