fix: 카카오톡 bulk send 오류 fix

mens-batch/src/main/java/kr/xit/biz/ens/service/EnsBatchExtractService.java

@@ -118,10 +118,9 @@ public class EnsBatchExtractService extends AbstractService implements
     @Override
     @Transactional(propagation = Propagation.REQUIRES_NEW)
     public void saveKkotalkSendResult(final String mstId, String unitySndMstId, final List<KkotalkDTO.BulkSendResponse> resList) {
-        resList.get(0).getEnvelopeIds();
         // 결과 반영
         resList.forEach(o ->
-            o.getEnvelopeIds().forEach(
+            o.getEnvelopes().forEach(
                 t -> {
                     // 카카오톡 전자고지 요청 결과 반영
                     mapper.updateKakaotalkSendBulksResult(t);