fix: fix capabilities check for PodDisrutionBudget

[sharkannon]

Checklist

• Changelog updated or skip changelog label added
• Documentation updated
• Template tests added for new features
• Integration tests added or modified for major features

[sharkannon]

Example of what I mean based on the value of Capabilities.APIVersions

Helm Template:

{{- range $key := $.Capabilities.APIVersions }}
- {{ . }}
{{- end }} 

Output:

- v1
- admissionregistration.k8s.io/v1
- admissionregistration.k8s.io/v1alpha1
- admissionregistration.k8s.io/v1beta1
- internal.apiserver.k8s.io/v1alpha1
- apps/v1
- apps/v1beta1
- apps/v1beta2
- authentication.k8s.io/v1
- authentication.k8s.io/v1alpha1
- authentication.k8s.io/v1beta1
- authorization.k8s.io/v1
- authorization.k8s.io/v1beta1
- autoscaling/v1
- autoscaling/v2
- autoscaling/v2beta1
- autoscaling/v2beta2
- batch/v1
- batch/v1beta1
- certificates.k8s.io/v1
- certificates.k8s.io/v1beta1
- certificates.k8s.io/v1alpha1
- coordination.k8s.io/v1beta1
- coordination.k8s.io/v1
- discovery.k8s.io/v1
- discovery.k8s.io/v1beta1
- events.k8s.io/v1
- events.k8s.io/v1beta1
- extensions/v1beta1
- flowcontrol.apiserver.k8s.io/v1
- flowcontrol.apiserver.k8s.io/v1beta1
- flowcontrol.apiserver.k8s.io/v1beta2
- flowcontrol.apiserver.k8s.io/v1beta3
- networking.k8s.io/v1
- networking.k8s.io/v1alpha1
- networking.k8s.io/v1beta1
- node.k8s.io/v1
- node.k8s.io/v1alpha1
- node.k8s.io/v1beta1
- policy/v1
- policy/v1beta1
- rbac.authorization.k8s.io/v1
- rbac.authorization.k8s.io/v1beta1
- rbac.authorization.k8s.io/v1alpha1
- resource.k8s.io/v1alpha2
- scheduling.k8s.io/v1alpha1
- scheduling.k8s.io/v1beta1
- scheduling.k8s.io/v1
- storage.k8s.io/v1beta1
- storage.k8s.io/v1
- storage.k8s.io/v1alpha1
- apiextensions.k8s.io/v1beta1
- apiextensions.k8s.io/v1

Note, policy/v1/PodDisruptionBudget doesn't exist, so the original check would always show "false"

[sumo-drosiek]

LGTM. Please update changelog entry

[sharkannon]

@sumo-drosiek Just updated the changelog to match what you requested.