Create a staging cluster and let github workflow to deploy nightly image onto this cluster

[nascentcore-eng]

Context This for now ensures the compatibility between CLI and API Server.

Objective For each change merged into main branch, we can test everything with CLI.

Proposed solution Add Kind cluster in github action, deploy, and run CLI against the minikube's API Server

[nascentcore-eng]

Also

• Create a script to invoke CLI to create, deploy, undeploy, delete modules, for each and every module under Starship/modules directory
• Create a README.md to add steps for manually verifying that data are showing up on the dashboards