message: feat(types)!: add `two_way_link` to `DiscordConnection`
  When the connection has a corresponding thrid party OAuth2 token
  `two_way_link` will be set to `true`.
  Reference:
  Closes:
diff: @@ -99,6 +99,8 @@ export interface DiscordConnection {
  /** An array of partial server integrations */
  integrations?: DiscordIntegration[];
  + /** Whether this connection has a corresponding third party OAuth2 token. */
  + two_way_link: boolean;
  }
  /** https://discord.com/developers/docs/resources/user#connection-object-services */
  