hot fix : 리프레쉬 갱신 후 저장안되는 버그 수정

src/main/java/kusitms/gallae/service/user/AuthenticationService.java

@@ -66,7 +66,7 @@ public RenewTokenResponse renewToken(String refreshToken) {
         }
 
         user.renewRefreshToken();
-
+        userRepository.save(user);
         RenewTokenResponse response = new RenewTokenResponse();
         response.setAccessToken(this.jwtProvider.createToken(user.getName(), List.of(user.getRole())));
         response.setRefreshToken(user.getRefreshToken());