[bitnami/nginx] Do not hardcode PDB apiVersion (#9110)

bitnami/nginx/Chart.yaml

@@ -8,7 +8,7 @@ dependencies:
     tags:
       - bitnami-common
     version: 1.x.x
-description: NGINX Open Source is a web server that can be also used as a reverse proxy, load balancer, and HTTP cache. Recommended for high-demanding sites due to its ability to provide faster content. 
+description: NGINX Open Source is a web server that can be also used as a reverse proxy, load balancer, and HTTP cache. Recommended for high-demanding sites due to its ability to provide faster content.
 engine: gotpl
 home: https://github.com/bitnami/charts/tree/master/bitnami/nginx
 icon: https://bitnami.com/assets/stacks/nginx/img/nginx-stack-220x234.png
@@ -25,4 +25,4 @@ name: nginx
 sources:
   - https://github.com/bitnami/bitnami-docker-nginx
   - https://www.nginx.org
-version: 9.7.7
+version: 9.7.8

bitnami/nginx/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" . }}