message: addSshKey schema change: userId > UserInput
  The documentation references an older schema.
  `userId` changed to `UserInput`
  ```
  input UserInput {
  id: String
  email: String
  }
  ```
diff: @@ -86,9 +86,12 @@ mutation {
  # TODO: Fill in the keyType field
  # Valid values are either SSH_RSA or SSH_ED25519.
  keyType: SSH_RSA
  + user: {
  # TODO: Fill in the userId field
  # This is the user ID that we noted from the addUser query
  - userId: 0
  + id:"0",
  + email:"michael.schmid@example.com"
  + }
  }
  ) {
  id
  @@ -185,7 +188,7 @@ mutation {
  # This is the notification name
  notificationName: ""
  }
  - ) {
  + )
  id
  }
  }
  