Release version 12.0.0 #844

Job	Run time
build-jvm-matrix	3s
build (ubuntu-latest, 21)	8m 22s
build (ubuntu-latest, 17)	8m 39s
build (ubuntu-latest, 11)	8m 21s
build (ubuntu-latest, 8)	8m 41s
build (windows-latest, 21)	10m 57s
build (windows-latest, 17)	11m 26s
build (windows-latest, 11)	11m 22s
build (windows-latest, 8)	10m 58s
check_bashisms	21s
check_samples (ubuntu-latest)	1m 38s
check_samples (windows-latest)	4m 0s
	1h 24m 48s

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