Update license text and api version for kube-ctf component

[The0mikkel]

No description provided.

[Copilot]

Pull request overview

This PR updates the API version for the kube-ctf component to use a more specific namespace and corrects terminology in the license section to accurately reflect that this repository contains a toolkit rather than a schema.

• Updated the apiVersion in the instanced Kubernetes challenge template to use the kube-ctf-specific namespace
• Corrected the license section description from "schema" to "tool" to accurately reflect the repository's purpose

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
template/instanced-k8s-challenge.yml	Updated apiVersion from ctfpilot.com/v1 to kube-ctf.ctfpilot.com/v1 to properly namespace the kube-ctf component's custom resource definition
README.md	Changed "This schema and repository" to "This tool and repository" in the License section, correctly identifying this as a toolkit rather than a schema

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