[bitnami/redis] Fix for NetworkPolicy blocking sentinel metrics exporter (#6050)

* Fix for NetworkPolicy blocking sentinel metrics exporter

When sentinel metrics exporter is enabled, that metrics port needs to be added to the network policy

* inc chart version

* Fixed port to not be hard coded

bitnami/redis/Chart.yaml

@@ -25,4 +25,4 @@ name: redis
 sources:
   - https://github.com/bitnami/bitnami-docker-redis
   - http://redis.io/
-version: 13.0.0
+version: 13.0.1

bitnami/redis/templates/networkpolicy.yaml

@@ -71,4 +71,9 @@ spec:
     - ports:
         - port: 9121
     {{- end }}
+    {{- if .Values.sentinel.metrics.enabled }}
+    # Allow prometheus scrapes for sentinel metrics
+    - ports:
+        - port: {{ .Values.sentinel.metrics.service.port }}
+    {{- end }}
 {{- end }}