message: Lower-case UUID format to uuid
  Normalise the UUID format string to 'uuid' so as to conform with all other specs
diff: "tenantId": {
  "type": "string",
  "readOnly": true,
  - "format": "UUID",
  + "format": "uuid",
  "description": "The id of the tenant which the identity belongs to."
  },
  "principalId": {
  "type": "string",
  "readOnly": true,
  - "format": "UUID",
  + "format": "uuid",
  "description": "The id of the service principal object associated with the created identity."
  },
  "clientId": {
  "type": "string",
  "readOnly": true,
  - "format": "UUID",
  + "format": "uuid",
  "description": "The id of the app associated with the identity. This is a random generated UUID by MSI."
  },
  "clientSecretUrl": {
  