Update OnElectionAction class to launch grpc server in leader case

registration-discovery-leader-reelection-cordinator-workers/src/main/java/Registration_Discovery/OnElectionAction.java

 package Registration_Discovery;
 
 import org.apache.zookeeper.KeeperException;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
 
-import java.io.IOException;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 
-public class OnElectionAction implements OnElectionCallback {
-
 
+public class OnElectionAction implements OnElectionCallback {
     private final ServiceRegistry serviceRegistry;
     private final int port;
-
     public OnElectionAction(ServiceRegistry serviceRegistry, int port) {
         this.serviceRegistry = serviceRegistry;
         this.port = port;
     }
-
     @Override
     public void onElectedToBeLeader() {
         serviceRegistry.unregisterFromCluster();
         serviceRegistry.registerForUpdates();
-        Leader leader = new Leader(port, serviceRegistry);
-        try {
-            leader.start();
-        } catch (IOException e) {
-            throw new RuntimeException(e);
-        } catch (InterruptedException e) {
-            throw new RuntimeException(e);
-        }
-    }
 
+        GrpcServerLauncher.start();
+    }
     @Override
     public void onWorker() {
         try {