Java CI

Add `build-attestation` target #1936

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
build (8, false)	1m 43s
build (11, false)	2m 29s
build (17, false)	1m 56s
build (25, false)	2m 5s
build (21, false)	1m 39s
build (26-ea, true)	1m 58s
	11m 50s