Update README.md #20

Job	Run time
test (ubuntu-latest, 28.2, false)	33s
test (ubuntu-latest, 29.4, false)	4m 37s
test (ubuntu-latest, 30.1, false)	3m 16s
test (macos-latest, 28.2, false)	1m 40s
test (macos-latest, 29.4, false)	6m 47s
test (macos-latest, 30.1, false)	6m 48s
test (windows-latest, 28.2, false)	15m 34s
test (windows-latest, 29.4, false)	8m 16s
test (windows-latest, 30.1, false)	8m 39s
test (ubuntu-latest, snapshot, true)	32s
test (macos-latest, snapshot, true)	1m 33s
test (windows-latest, snapshot, true)	23m 39s
	1h 21m 54s

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