Currently take 31 minutes as opposed to 13/4 minutes on Linux/Windows

https://github.com/pandas-dev/pandas/actions/runs/3207741612/jobs/5242937055

In theory building the extensions in parallel should help, but a race condition has made parallel building unreliable: https://github.com/pandas-dev/pandas/issues/47305

Comment From: mroeschke

Don't think this is an issue anymore, closing