chore: bump versions to v0.18 #185

Job	Run time
counter/anchor	4m 3s
zk/nullifier	6m 33s
basic-operations/anchor/burn	3m 58s
basic-operations/anchor/create	4m 23s
basic-operations/anchor/reinit	4m 13s
basic-operations/anchor/create-nullifier	4m 15s
basic-operations/anchor/update	3m 57s
create-and-update	4m 15s
zk/zk-id	8m 8s
basic-operations/anchor/close	4m 5s
	47m 50s

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