fix: 쿠키 삭제 도메인 추가

Author: sapiens2000

src/main/java/com/example/log4u/common/util/CookieUtil.java

@@ -31,6 +31,7 @@ public static void deleteCookie(HttpServletResponse response, String name) {
 		cookie.setPath("/");
 		cookie.setHttpOnly(true);
 		cookie.setSecure(true);
+		cookie.setDomain("log4u.site");
 		response.addCookie(cookie);
 	}