Support EmPy 4.x configuration API (#665) #556

Job	Run time
pytest / setup	3s
bootstrap / setup	4s
bootstrap / bootstrap (macos-latest, 3.8)	1m 16s
bootstrap / bootstrap (macos-latest, 3.9)	40s
pytest / pytest (macos-latest, 3.8)	1m 31s
bootstrap / bootstrap (macos-latest, 3.10)	42s
pytest / pytest (macos-latest, 3.9)	55s
bootstrap / bootstrap (macos-latest, 3.11)	36s
pytest / pytest (macos-latest, 3.10)	51s
bootstrap / bootstrap (macos-latest, 3.12)	49s
pytest / pytest (macos-latest, 3.11)	55s
bootstrap / bootstrap (ubuntu-latest, 3.8)	54s
pytest / pytest (macos-latest, 3.12)	51s
bootstrap / bootstrap (ubuntu-latest, 3.9)	52s
pytest / pytest (ubuntu-latest, 3.8)	1m 42s
bootstrap / bootstrap (ubuntu-latest, 3.10)	51s
pytest / pytest (ubuntu-latest, 3.9)	1m 43s
bootstrap / bootstrap (ubuntu-latest, 3.11)	50s
pytest / pytest (ubuntu-latest, 3.10)	1m 53s
bootstrap / bootstrap (ubuntu-latest, 3.12)	58s
pytest / pytest (ubuntu-latest, 3.11)	4m 14s
pytest / pytest (ubuntu-latest, 3.12)	4m 8s
bootstrap / bootstrap (windows-latest, 3.8)	2m 0s
pytest / pytest (windows-latest, 3.8)	2m 9s
bootstrap / bootstrap (windows-latest, 3.9)	1m 37s
pytest / pytest (windows-latest, 3.9)	2m 13s
bootstrap / bootstrap (windows-latest, 3.10)	1m 55s
pytest / pytest (windows-latest, 3.10)	2m 14s
bootstrap / bootstrap (windows-latest, 3.11)	1m 56s
pytest / pytest (windows-latest, 3.11)	2m 34s
bootstrap / bootstrap (windows-latest, 3.12)	2m 0s
pytest / pytest (windows-latest, 3.12)	3m 8s
bootstrap / bootstrap (ubuntu-20.04, 3.6)	59s
pytest / pytest (ubuntu-20.04, 3.6)	1m 8s
	51m 11s

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