`server-id:` should be `server-name` per https://github.com/spring-cloud/spring-cloud-vault/blob/master/spring-cloud-vault-config/src/main/java/org/springframework/cloud/vault/config/VaultProperties.java#L584-L588 See gh-407.
`server-id:` should be `server-name` per https://github.com/spring-cloud/spring-cloud-vault/blob/master/spring-cloud-vault-config/src/main/java/org/springframework/cloud/vault/config/VaultProperties.java#L584-L588 See gh-407.