fix: add missing lastPublished to SCCreativeWork

src/things/abstract/creative-work.ts

@@ -71,6 +71,13 @@ export interface SCCreativeWorkWithoutReferences
    */
   keywords?: string[];
 
+  /**
+   * Date (in text form) the creative work was most recently
+   *
+   * @keyword
+   */
+  lastPublished?: string;
+
   /**
    * Translated fields of the creative work
    */