fix: de-flake LatestDistinctIT.java #7322

Job	Run time
sample_operators_tests (sample-operators/leader-election)	4m 4s
sample_operators_tests (sample-operators/operations)	9m 24s
sample_operators_tests (sample-operators/tomcat-operator)	3m 43s
sample_operators_tests (sample-operators/webpage)	4m 11s
sample_operators_tests (sample-operators/mysql-schema)	3m 39s
	25m 1s

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