fix(worker): make token optional in processor function fixes #490

src/interfaces/worker-options.ts

@@ -6,7 +6,7 @@ import { AdvancedOptions, QueueBaseOptions, RateLimiterOptions } from './';
  */
 export type Processor<T = any, R = any, N extends string = string> = (
   job: Job<T, R, N>,
-  token: string,
+  token?: string,
 ) => Promise<R>;
 
 export interface WorkerOptions extends QueueBaseOptions {