Fix flaky fuzz tests with count_values (#6474) #10874

Job	Run time
CodeQL	6m 31s
lint	4m 34s
test	16m 4s
test-no-race	7m 12s
build	4m 7s
integration-configs-db	2m 45s
integration (requires_docker)	7m 32s
integration (integration_alertmanager)	4m 25s
integration (integration_backward_compatibility)	10m 49s
integration (integration_memberlist)	8m 21s
integration (integration_querier)	15m 31s
integration (integration_ruler)	5m 47s
integration (integration_query_fuzz)	4m 51s
deploy_website	47s
deploy	5m 47s
	1h 45m 3s

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