fixing cicd pipeline #4 - test

.github/workflows/deploy-to-ec2.yml

@@ -101,7 +101,7 @@ jobs:
           cat autoscaling_instance_ips.txt
           IFS=$'\n' read -d '' -r -a ips < "$ips_file"
           for ip in "${ips[@]}"; do
-            ssh -o StrictHostKeyChecking=no -i /home/runner/.ssh/id_rsa ubuntu@$ip << 'EOF'
+            ssh -o StrictHostKeyChecking=no -i /home/runner/.ssh/id_rsa ubuntu@$ip << EOF
               docker pull ${{ secrets.DOCKER_HUB_USERNAME }}/flask-app-image-repository:latest
               docker stop my-container || true
               docker rm my-container || true