Fix SSH key setup in deployment workflow

.gitea/workflows/deploy.yml

@@ -16,8 +16,9 @@ jobs:
       - name: Setup SSH
         run: |
           mkdir -p ~/.ssh
-          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_rsa
+          echo "${{ secrets.SSH_PRIVATE_KEY }}" | tr -d '\r' > ~/.ssh/id_rsa
           chmod 600 ~/.ssh/id_rsa
+          ssh-keyscan -p ${{ secrets.SSH_PORT }} ${{ secrets.SSH_HOST }} >> ~/.ssh/known_hosts 2>/dev/null || true
 
       - name: Deploy to Production Server
         run: |