Add an option to specify retention period

src/upload-inputs.ts

@@ -15,4 +15,9 @@ export interface UploadInputs {
    * The desired behavior if no files are found with the provided search path
    */
   ifNoFilesFound: NoFileOptions
+
+  /**
+   * Duration after which artifact will expire in days
+   */
+  retentionDays: number
 }