Mark more tests as flaky #3894

Job	Run time
build-all	1m 22s
build-java11	1m 39s
tests (driver, 8)	1m 14s
tests (server, 8)	3m 48s
tests (test, 8)	9m 1s
tests (inmemory, -Dtest.skip.tp=false, 8)	32m 40s
tests (berkeleyje, 8)	11m 4s
tests (lucene, 8)	4m 51s
tests (driver, -Pjava-11, 11)	1m 19s
tests (server, -Pjava-11, 11)	3m 51s
tests (test, -Pjava-11, 11)	8m 47s
tests (inmemory, -Pjava-11, -Dtest.skip.tp=false, 11)	33m 33s
tests (berkeleyje, -Pjava-11, 11)	10m 13s
tests (lucene, -Pjava-11, 11)	5m 1s
	2h 8m 23s

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