fix: return `AlreadyExists` when archive exists #5957

Job	Run time
run-determination	2s
check-outdated (./)	10s
check-config (./)	11s
check-style (./)	1m 4s
build (rpc/internal/client_example)	30s
build (commands/term_example)	26s
check-formatting (./)	14s
build (internal/arduino/discovery/discovery_client)	17s
check-license-headers (./)	16s
	3m 10s

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