Changes since last version
--------------------------
* 7108a8f: Try Python 3.12 again.
* 7cee343: Add Python 3.11 back again.
* 8903e46: Remove building on Python 3.12 again for now.
* e7ca255: Revert "Try installing setuptools for semaphore."
* 134c767: Try installing setuptools for semaphore.
* 5baf841: Add Python 3.12 as well.
* 8b6ce26: Upgrade Sphinx again while I'm at it.
* edace31: Fix review comment.
* fb14c89: New version of prospector.
* 4a71326: Forgot to remove comment.
* 3443a6c: Fix review comment. Update transitive deps in docs.
* 6987016: Upgrade package cachetools.
* fa91422: Upgrade pytest plugins.
* 250e825: Fix some review comment and a warning.
* 1a6145a: Newer python.