Add default partition when no matching labelset liimits #10738

Job	Run time
CodeQL	7m 32s
build	4m 32s
test	13m 30s
lint	2m 46s
test-no-race	33m 14s
integration-configs-db	2m 48s
integration (requires_docker)	7m 33s
integration (integration_alertmanager)	4m 22s
integration (integration_backward_compatibility)	11m 21s
integration (integration_memberlist)	7m 47s
integration (integration_querier)	15m 39s
integration (integration_ruler)	5m 35s
integration (integration_query_fuzz)	5m 25s
deploy_website	0s
deploy	0s
	2h 2m 4s

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