KubernetesPluginRegisterTaskTest Remove unused imports

[manusa]

Description

The class KubernetesPluginRegisterTaskTest has unused imports.

The following lines:
https://github.com/eclipse/jkube/blob/5da6068d7756784aef9569568ee80f98da97e296/gradle-plugin/kubernetes/src/test/java/org/eclipse/jkube/gradle/plugin/KubernetesPluginRegisterTaskTest.java#L27

• should be removed

Before you start 🔴

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Make sure you read the contributing guide first. Pay special attention to the ECA agreement section and the requirement to sign-off your commit.

How to manually test my changes

Kubernetes

If you don't have a real Kubernetes cluster available (most probably), you can use Minikube or Kind to test with a local cluster.

• Minikube get started guide
• Kind (Requires Docker) quick start

OpenShift

If you don't have a real OpenShift cluster available (most probably), you can use Red Hat's developer Sandbox for Red Hat OpenShift. The only requirement is to have a Red Hat account.

Once you have your Sandbox environment, you'll need to download the oc tool from the cluster console.
(Press the ? icon and from the context menu select Command line tools, you'll be redirected to https://$subdomain.openshiftapps.com/command-lines-tools where you'll be able to download the CLI for your platform)

[ngthhu]

I'd like to work on this issue. Please assign it to me.