Added UserReplicaGroupMetrics #10878

Job	Run time
lint	4m 19s
build	4m 12s
test	15m 48s
CodeQL	6m 39s
test-no-race	7m 22s
integration-configs-db	2m 56s
integration (requires_docker)	7m 35s
integration (integration_alertmanager)	4m 10s
integration (integration_backward_compatibility)	10m 19s
integration (integration_memberlist)	7m 37s
integration (integration_querier)	15m 33s
integration (integration_ruler)	5m 48s
integration (integration_query_fuzz)	4m 39s
deploy_website	0s
deploy	0s
	1h 36m 57s

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