[FEATURE]: --throtle CLI option

[piranna]

Feature summary

CLI option to reduce number of requests per minute

Feature description

Add a CLI option to pass a limit of how much requests per minute Will be done to OpenAI. This will allow both to don't get rate errors when doing the requests, and also to span the requests over more time, leading to less presure on LinkedIn and reduce risk of getting baned.

Motivation

I want to use OpenAI Free tier, i don't want or need a paid one

Alternatives considered

Implement the featured myself and do a PR.

Additional context

No response