[Hacktoberfest] PlatformMode fields may be 'final'

[manusa]

Description

The following statement is reported as a code style issue:

https://github.com/eclipse/jkube/blob/c15c4bb8b7cc4ea7502f8314b1e067b27f9a1dda/jkube-kit/config/resource/src/main/java/org/eclipse/jkube/kit/config/resource/PlatformMode.java#L35

• should be changed to:

    private final String label;

Before you start

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)

[dipesh-rawat]

@manusa I could like to work on this. Could you please assign this to me.