What would you like to be added:
Service Provider Crossplane should add its own service instance type Crossplane to the ServiceProvider status.

Why is this needed:
In order to properly delete a ManagedControlPlane. The platform service for ManagedControlPlanes needs to know which other services might exists on the Onboarding API. For that, the platform service will look into ServiceProvider.status on the platform cluster to see which other services are available.

Task

• register GVK at init job

apiVersion: openmcp.cloud/v1alpha1
kind: ServiceProvider
metadata:
  name: crossplane
spec:
  ...
status:
  ...
  resources:
    - group: crossplane.services.openmcp.cloud
      version: v1alpha1
      kind: Crossplane

Reference for implementation: openmcp-project/service-provider-landscaper#174