[idea] implementing rate limiting per queue?

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Great release! Looking forward to trying this in tandem with Mission Control in 2024!

I had a question about concurrency and how it might play with uniqueness and rate-limits for things like external APIs..

Whats the recommended way for dealing with external APIs which impose a rate limit (e.g. 5 requests per second) with solid_queue?

The concurrency controls with key is great btw, I'm often concerned about two workers writing to the same record concurrently so this is super helpful :)