fix: fix deploy.yml

Author: chaeyuuu

.github/workflows/deploy.yml

@@ -59,6 +59,8 @@ jobs:
 
             echo "새 컨테이너 실행: $NEW_NAME (포트: $NEW_PORT)"
             docker pull ${{ secrets.DOCKER_USERNAME }}/blockguard_server:latest
+            
+            docker rm -f $NEW_NAME || true
             docker run -d --name $NEW_NAME -p $NEW_PORT:8080 ${{ secrets.DOCKER_USERNAME }}/blockguard_server:latest
 
             echo "헬스체크 진행 중..."