[Feature Request] Adding a new input 'ignore-prefix' to ignore images that shouldn't be cached

[abdulrahman-streampay]

Hey Kurt-von-Laven! 🎉

This GitHub Action has saved me a lot of time, thank you for building this!

Through out my usage I've noticed that I was in need of a feature to ignore some docker images to be cached, usually those images are the repo image I build and push to ECR. However, they get picked up because the test.docker-compose.yml will always have the same hash value, as our integration testing dependencies don't change through out runs.

My proposal is to add a new input ignore-prefix to ignore any images starting with any strings we provide in this input array. I am willing to work on this feature if you believe it's a great addition to this GitHub Action.

Let me know your thoughts.

Best regards, ❤️