refactor #4: aws Region 수정

Author: willjsw

.github/workflows/ecr_cd_tmp.yml

@@ -13,7 +13,7 @@ on:
         default: 'latest'
 
 env:
-  AWS_REGION: ap-southeast-2
+  AWS_REGION: ap-northeast-2
   ECR_REGISTRY: public.ecr.aws/k5m3t9y9
   ECR_REPOSITORY: come2us-gateway
   IMAGE_TAG: ${{ github.sha }}