feat: Helm chart support extra volumes (#2982)

helm/rustfs/values.yaml

@@ -130,6 +130,9 @@ extraEnv: [] # This is for setting extra environment variables in the rustfs con
 #     value: "EC:4"
 
 
+extraVolumes: []
+extraVolumeMounts: []
+
 # This section builds out the service account more information can be found here: https://kubernetes.io/docs/concepts/security/service-accounts/
 serviceAccount:
   # Specifies whether a service account should be created