Update ci.yml

Author: ydj515

.github/workflows/ci.yml

@@ -78,7 +78,7 @@ jobs:
           key: ${{ secrets.EC2_PEM_KEY }}
           script: |
             # Docker 로그인
-            docker login -u ${{ secrets.DOCKER_USERNAME }} -p ${{ secrets.DOCKER_PASSWORD }}
+            echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
 
             # Docker 이미지 Pull
             docker pull ${{ secrets.DOCKER_USERNAME }}/${{ secrets.APP_NAME }}:latest