helm chart templates use outdated API [PodDisruptionBudget]

[ep4sh]

Hi team, please check the following issue with helm chart installation:

Steps to reproduce:

1. $ git clone https://github.com/wallarm/api-firewall.git
2. $ cd api-firewall/helm/api-firewall
3. $ kubectl create ns apif
4. $ helm upgrade --install apifw . -n apifw Release "apifw" does not exist. Installing it now. Error: unable to build kubernetes objects from release manifest: resource mapping not found for name: "apifw-api-firewall" namespace: "" from "": no matches for kind "PodDisruptionBudget" in version "extensions/v1beta1" ensure CRDs are installed first
5. $ kubectl version Client Version: v1.30.1 Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3 Server Version: v1.30.0

The same on kubernetes v1.25 and above. The issue can be fixed by disabling podDisruptionBudget (set enabled to false).

My guess is PDB templates are built on removed API: https://kubernetes.io/docs/reference/using-api/deprecation-guide/