👷ci: GitHub Actions: EC2 배포 워크플로우 수정

Change SSH key handling to avoid base64 decoding.

Author: codewith-MJ

.github/workflows/deploy.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup SSH
         run: |
           mkdir -p ~/.ssh
-          echo "${{ secrets.EC2_SSH_KEY }}" | base64 --decode > ~/.ssh/id_rsa
+          echo "${{ secrets.EC2_SSH_KEY }}" > ~/.ssh/id_rsa
           chmod 600 ~/.ssh/id_rsa
           ssh-keyscan -H ${{ secrets.EC2_HOST }} >> ~/.ssh/known_hosts