⚽Refactor #42: reiussnaceToken 반환하는 form 수정

before: String 
토큰값

after: Map
{
    "accessToken": "토큰값"
}

src/main/java/com/umc/DongnaeFriend/domain/user/contorller/UserController.java

@@ -70,7 +70,9 @@ public ResponseEntity<?> reiussnaceToken(@RequestParam("refreshToken") String re
 
             //토큰 재발급
             String access_token = userService.createAccessTokenFromRefreshToken(refreshToken);
-            return ResponseEntity.ok(access_token);
+            Map<String,Object> accessToken = new HashMap<>();
+            accessToken.put("accessToken",access_token);
+            return ResponseEntity.ok(accessToken);
         } catch (Exception e) {
             // RefreshToken만료
             throw new CustomException(ErrorCode.INVALID_REFRESH_TOKEN);