fix: update priorityClassName to avoid warnings (#5357)

Co-authored-by: albigi <alex.bigi@gmail.com>
Co-authored-by: Miguel Ruiz <miruiz@bitnami.com>

bitnami/redis/Chart.yaml

@@ -25,4 +25,4 @@ name: redis
 sources:
   - https://github.com/bitnami/bitnami-docker-redis
   - http://redis.io/
-version: 12.7.2
+version: 12.7.3

bitnami/redis/values.yaml

@@ -483,7 +483,7 @@ master:
 
   ## Redis(TM) Master pod priorityClassName
   ##
-  priorityClassName: ''
+  priorityClassName: {}
 
   ## An array to add extra env vars
   ## For example:
@@ -647,7 +647,7 @@ slave:
   podAnnotations: {}
 
   ## Redis(TM) slave pod priorityClassName
-  # priorityClassName: ''
+  priorityClassName: {}
 
   ## Enable persistence using Persistent Volume Claims
   ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
@@ -825,7 +825,7 @@ metrics:
     rules: []
 
   ## Metrics exporter pod priorityClassName
-  # priorityClassName: ''
+  priorityClassName: {}
   service:
     type: ClusterIP