Allowing Python 3.11 #426

Job	Run time
Build documentation	10m 38s
Build (3.9, ubuntu-latest)	6m 48s
Build (3.10, ubuntu-latest)	4m 51s
Build (3.11, ubuntu-latest)	6m 42s
Build (3.9, macos-latest)	7m 0s
Build (3.10, macos-latest)	11m 8s
Build (3.11, macos-latest)	10m 22s
Build (3.9, windows-latest)	12m 7s
Build (3.10, windows-latest)	11m 4s
Build (3.11, windows-latest)	8m 54s
Indicate completion to coveralls.io	15s
	1h 29m 49s

Provide feedback