upgrade Thanos version to commit fc1a6edf7acc82ec21ebc9fd641ce7afc4fe… #8197

Job	Run time
build	4m 35s
build	4m 35s
lint	16m 24s
lint	16m 24s
test	17m 49s
test	17m 49s
integration-configs-db	2m 8s
integration-configs-db	2m 8s
integration (requires_docker)	4m 59s
integration (requires_docker)	4m 59s
integration (integration_alertmanager)	3m 55s
integration (integration_alertmanager)	3m 55s
integration (integration_backward_compatibility)	7m 44s
integration (integration_backward_compatibility)	7m 45s
integration (integration_memberlist)	7m 13s
integration (integration_memberlist)	7m 13s
integration (integration_querier)	12m 40s
integration (integration_querier)	12m 40s
integration (integration_ruler)	3m 49s
integration (integration_ruler)	3m 49s
integration (integration_query_fuzz)	1m 48s
integration (integration_query_fuzz)	1m 48s
deploy_website	1m 46s
deploy_website	1m 46s
deploy	0s
deploy	3m 5s
	2h 52m 46s

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