Make trivy scan tentative to overcome rate limits #5426

Job	Run time
build-all	1h 21m 48s
build-java11	3m 0s
tests (core, 8)	1m 27s
tests (driver, 8)	1m 7s
tests (server, 8)	3m 46s
tests (test, 8)	6m 46s
tests (inmemory, -Dtest.skip.tp=false, 8)	32m 35s
tests (berkeleyje, 8)	9m 15s
tests (lucene, 8)	4m 50s
tests (core, -Pjava-11, 11)	1m 27s
tests (driver, -Pjava-11, 11)	1m 23s
tests (server, -Pjava-11, 11)	3m 54s
tests (test, -Pjava-11, 11)	7m 26s
tests (inmemory, -Pjava-11, -Dtest.skip.tp=false, 11)	32m 29s
tests (berkeleyje, -Pjava-11, 11)	9m 31s
tests (lucene, -Pjava-11, 11)	4m 56s
	3h 25m 40s

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