What’s the easiest way to update my ECS service when a new container is pushed to ECR?

I'm trying to figure out the simplest method to automatically update my ECS service every time I push a new container to ECR. I've come across several options like Step Functions, CI/CD pipelines, and EventBridge, but I'm looking for the most straightforward solution. Since I typically use the #latest tag, I find myself needing to manually update the service or trigger a new deployment each time. Is there a more efficient way to handle this?