try to change syntax

.github/workflows/deploy.yml

@@ -0,0 +1,34 @@
+name: Deploy to production
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: "Checkout repository"
+        uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/[email protected]
+        with:
+          bundler-cache: true
+      - name: Install SSH key
+        uses: webfactory/[email protected]
+        with:
+          ssh-private-key: ${{ secrets.SSH_KEY }}
+      - name: Add known host
+        run: |
+          ssh-keyscan -p ${{ secrets.DEPLOY_HOST_SSH_PORT }} ${{ secrets.DEPLOY_HOST }} >> ~/.ssh/known_hosts
+      - name: Test SSH connection
+        run: |
+          ssh -vvv ${{ secrets.DEPLOY_USERNAME }}@${{ secrets.DEPLOY_HOST }} -p${{ secrets.DEPLOY_HOST_SSH_PORT }}
+      - name: Deploy
+        env:
+          DEPLOY_HOST: ${{ secrets.DEPLOY_HOST }}
+          DEPLOY_USERNAME: ${{ secrets.DEPLOY_USERNAME }}
+          DEPLOY_HOST_SSH_PORT: ${{ secrets.DEPLOY_HOST_SSH_PORT }}
+        run: |
+          bundle exec cap production deploy