Support EmPy 4.x configuration API #554

Job	Run time
pytest / setup	2s
bootstrap / setup	3s
pytest / pytest (macos-latest, 3.8)	1m 50s
pytest / pytest (macos-latest, 3.9)	50s
pytest / pytest (macos-latest, 3.10)	47s
pytest / pytest (macos-latest, 3.11)	47s
pytest / pytest (macos-latest, 3.12)	49s
pytest / pytest (ubuntu-latest, 3.8)	1m 58s
pytest / pytest (ubuntu-latest, 3.9)	1m 39s
pytest / pytest (ubuntu-latest, 3.10)	1m 49s
pytest / pytest (ubuntu-latest, 3.11)	1m 49s
pytest / pytest (ubuntu-latest, 3.12)	1m 47s
pytest / pytest (windows-latest, 3.8)	2m 3s
pytest / pytest (windows-latest, 3.9)	2m 34s
pytest / pytest (windows-latest, 3.10)	2m 15s
pytest / pytest (windows-latest, 3.11)	1m 59s
pytest / pytest (windows-latest, 3.12)	2m 30s
pytest / pytest (ubuntu-20.04, 3.6)	59s
bootstrap / bootstrap (macos-latest, 3.8)	1m 7s
bootstrap / bootstrap (macos-latest, 3.9)	40s
bootstrap / bootstrap (macos-latest, 3.10)	38s
bootstrap / bootstrap (macos-latest, 3.11)	37s
bootstrap / bootstrap (macos-latest, 3.12)	38s
bootstrap / bootstrap (ubuntu-latest, 3.8)	52s
bootstrap / bootstrap (ubuntu-latest, 3.9)	53s
bootstrap / bootstrap (ubuntu-latest, 3.10)	51s
bootstrap / bootstrap (ubuntu-latest, 3.11)	48s
bootstrap / bootstrap (ubuntu-latest, 3.12)	56s
bootstrap / bootstrap (windows-latest, 3.8)	1m 50s
bootstrap / bootstrap (windows-latest, 3.9)	1m 48s
bootstrap / bootstrap (windows-latest, 3.10)	1m 31s
bootstrap / bootstrap (windows-latest, 3.11)	1m 54s
bootstrap / bootstrap (windows-latest, 3.12)	1m 56s
bootstrap / bootstrap (ubuntu-20.04, 3.6)	56s
	44m 25s

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