retry chunk pool exhaustion error in querier, not in query frontend #7779

Job	Run time
test	24m 9s
build	5m 41s
lint	7m 25s
integration-configs-db	2m 53s
integration (requires_docker)	6m 52s
integration (integration_alertmanager)	4m 40s
integration (integration_backward_compatibility)	10m 3s
integration (integration_memberlist)	9m 33s
integration (integration_querier)	15m 17s
integration (integration_ruler)	5m 23s
integration (integration_query_fuzz)	2m 40s
deploy_website	0s
deploy	0s
	1h 34m 36s

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