chore: bump versions to v0.18 #187

Job	Run time
basic-operations/anchor/burn	5m 20s
zk/zk-id	5m 20s
counter/anchor	5m 21s
create-and-update	5m 21s
basic-operations/anchor/create-nullifier	5m 20s
basic-operations/anchor/update	5m 19s
zk/nullifier	5m 22s
basic-operations/anchor/reinit	5m 20s
basic-operations/anchor/close	5m 20s
basic-operations/anchor/create	5m 21s
	53m 24s

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