Support remote write v2 by converting request #10542

Job	Run time
build	4m 24s
CodeQL	6m 42s
test	15m 39s
lint	4m 23s
integration-configs-db	2m 38s
integration (requires_docker)	7m 8s
integration (integration_alertmanager)	4m 7s
integration (integration_backward_compatibility)	11m 1s
integration (integration_memberlist)	7m 22s
integration (integration_querier)	15m 17s
integration (integration_ruler)	5m 36s
integration (integration_query_fuzz)	4m 32s
integration (integration_remote_write_v2)	2m 8s
deploy_website	0s
deploy	0s
	1h 30m 57s

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