[bitnami/cassandra] Do not hardcode PDB apiVersion (#9091)

bitnami/cassandra/Chart.yaml

@@ -23,4 +23,4 @@ name: cassandra
 sources:
   - https://github.com/bitnami/bitnami-docker-cassandra
   - http://cassandra.apache.org
-version: 9.1.6
+version: 9.1.7

bitnami/cassandra/templates/pdb.yaml

@@ -1,5 +1,5 @@
 {{- if .Values.pdb.create }}
-apiVersion: policy/v1beta1
+apiVersion: {{ include "common.capabilities.policy.apiVersion" . }}
 kind: PodDisruptionBudget
 metadata:
   name: {{ include "common.names.fullname" . }}