add 'publish' code to addOrUpdateEta

src/repositories/UnoptimizedInMemoryRepository.ts

@@ -152,6 +152,10 @@ export class UnoptimizedInMemoryRepository implements GetterSetterRepository {
     } else {
       this.etas.push(eta);
     }
+
+    this.subscribers.forEach(subscriber => {
+      subscriber(eta);
+    });
   }
 
   private async removeEntityByMatcherIfExists<T>(callback: (value: T) => boolean, arrayToSearchIn: T[]) {