docs: How to set `correlation_id` with `publisher`?

[sobolevn]

How can this be done? We need an example or a link:

URL: https://faststream.airt.ai/latest/getting-started/publishing/direct/#publisher-direct-usage

[Lancetnik]

How can this be done? We need an example or a link:

URL: https://faststream.airt.ai/latest/getting-started/publishing/direct/#publisher-direct-usage

Just a '*.publish(..., correlation_id=X)

[sobolevn]

I would also clarify what X is here. When to set it a new value, when re-use existing one. For me, it is not clear.