System test with minikube demo

[marcelldls]

Minikube is a lightweight Kubernetes implementation that creates a VM on your local machine and deploys a simple cluster containing only one node. https://kubernetes.io/docs/tutorials/kubernetes-basics/create-cluster/cluster-intro/

About setup-minikube action https://github.com/medyagh/setup-minikube

• build/deploy/test your application against a real Kubernetes cluster in GitHub Actions.
• maintained by minikube maintainers

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 77.93%. Comparing base (7054914) to head (46cbe2c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #107 +/- ## ======================================= Coverage 77.93% 77.93% ======================================= Files 14 14 Lines 852 852 ======================================= Hits 664 664 Misses 188 188 ```

:umbrella: View full report in Codecov by Sentry.
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[gilesknap]

@coretl check out what @marcelldls has done for ec system tests. I think this is really cool and could come in useful for many other K8S projects.

[gilesknap]

merging this one too.