message: sql always encrypted add uami support
diff: },
  "enum": [
  "ServicePrincipal",
  - "ManagedIdentity"
  + "ManagedIdentity",
  + "UserAssignedManagedIdentity"
  ],
  "type": "string",
  "description": "Sql always encrypted AKV authentication type. Type: string (or Expression with resultType string)."
  "servicePrincipalKey": {
  "$ref": "../datafactory.json#/definitions/SecretBase",
  "description": "The key of the service principal used to authenticate against Azure Key Vault."
  + },
  + "credential": {
  + "$ref": "../datafactory.json#/definitions/CredentialReference",
  + "description": "The credential reference containing authentication information."
  }
  },
  "required": [
  