Python 3.11 dependency issues

[ajkerrigan]

Describe the bug

There are a couple issues with upstream dependencies that break installs under Python 3.11:

• c7n-gcp had a known issue related to ratelimiter (see also Fix warning that coroutine decorator is deprecated since Python 3.8 RazerM/ratelimiter#10)
• c7n-policystream is currently pinned to 1.9.x which prevents it from making use of 3.11-compatible wheels that became available starting with 1.10.1

Feels like a dependency bump should cover us for policystream. The c7n-gcp/ratelimiter issue has more history than I was aware of, and the best next step isn't clear to me.

What did you expect to happen?

Pip installs of releases and poetry installs at dev time should work under Python 3.11.

Cloud Provider

Amazon Web Services (AWS)

Cloud Custodian version and dependency information

No response

Policy

No response

Relevant log/traceback output

No response

Extra information or context

No response

[kapilt]

I think we need to manually excise rate limiter in favor of a more current package. which one I'm not sure, there's a lot of them out there.

[ajkerrigan]

As far as I can tell we're good here now - with the 0.9.21 release I'm seeing clean installs from pip and poetry on 3.11. I've got no real allegiance to a specific ratelimiter package, but pyrate seemed to be actively maintained with solid docs and minimal code changes on our side.