📍Use lombok, reformat, and optimize the code (#1560)

* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>

priority-queue/README.md

@@ -122,10 +122,9 @@ public class QueueManager {
 `Worker` constantly polls `QueueManager` for highest priority message and processes it.
 
 ```java
+@Slf4j
 public class Worker {
 
-  private static final Logger LOGGER = LoggerFactory.getLogger(Worker.class);
-
   private final QueueManager queueManager;
 
   public Worker(QueueManager queueManager) {