feat(rust): bump vault vers for ockam crate

Author: Jared Stanbrough

implementations/rust/ockam/ockam/Cargo.lock

@@ -28,8 +28,8 @@ ff = { version = "0.6", package = "ff-zeroize", optional = true }
 ockam_core = {path = "../ockam_core", version = "0.6.0"}
 ockam_node = {path = "../ockam_node", version = "0.4.0", optional = true}
 ockam_node_attribute = {path = "../ockam_node_attribute", version = "0.1.4"}
-ockam_vault_core = {path = "../ockam_vault_core", version = "0.3.0"}
-ockam_vault = {path = "../ockam_vault", version = "0.3.0"}
+ockam_vault_core = {path = "../ockam_vault_core", version = "0.3.1"}
+ockam_vault = {path = "../ockam_vault", version = "0.3.1"}
 arrayref = "0.3"
 pairing-plus = { version = "0.19", optional = true }
 serde_bare = "0.3"