Extend the test.yaml pipeline to run the full build-push-deploy-delete

[LucaLanziani]

Prerequisites

The pipeline should deploy k8s-kurated-addons on a Kind cluster with just Knative enabled.

You can use the integration-test pipeline present in k8s-kurated-addons to spin up the cluster or use the artifact generated by k8s-kurated-addons to deploy the addons, enabling only the one needed e.g. knative.

Feel free to ping @LucaLanziani if you need help with this first part.

Requirements

The next steps are (you don't need a cluster for the first two steps):

• build a container using a predictable tags (branch name)
• push the container to github registry
• deploy the knative app in the above cluster
• test that the container is there
• delete the container from the cluster