fix: SSH 'USERNAME' var

Author: TheRustifyer

.github/workflows/deploy-pre.yml

@@ -23,7 +23,7 @@ jobs:
         uses: appleboy/[email protected]
         with:
           host: ${{ secrets.SSH_HOST }}
-          username: ${{ secrets.SSH_USER }}
+          username: ${{ secrets.SSH_USERNAME }}
           key: ${{ secrets.SSH_KEY }}
           source: "./api-gateway.tar.gz,./docker-compose.yml"
           target: /opt/api-gateway/