chore: Java 스타일 수정

Author: github-actions

backend/src/main/java/io/f1/backend/domain/game/app/GameService.java

@@ -176,11 +176,11 @@ public void gameEnd(Room room) {
         room.initializePlayers();
 
         List<Player> disconnectedPlayers = room.getDisconnectedPlayers();
-        if(!disconnectedPlayers.isEmpty()) {
+        if (!disconnectedPlayers.isEmpty()) {
             roomService.handleDisconnectedPlayers(room, disconnectedPlayers);
         } else {
             messageSender.sendBroadcast(
-                destination, MessageType.PLAYER_LIST, toPlayerListResponse(room));
+                    destination, MessageType.PLAYER_LIST, toPlayerListResponse(room));
         }
 
         room.updateRoomState(RoomState.WAITING);

backend/src/test/java/io/f1/backend/domain/game/app/RoomServiceTests.java

@@ -54,9 +54,7 @@ class RoomServiceTests {
     void setUp() {
         MockitoAnnotations.openMocks(this); // @Mock 어노테이션이 붙은 필드들을 초기화합니다.
 
-        roomService =
-                new RoomService(
-                        quizService, roomRepository, eventPublisher, messageSender);
+        roomService = new RoomService(quizService, roomRepository, eventPublisher, messageSender);
 
         SecurityContextHolder.clearContext();
     }