schema: Add missing velero properties

Author: Zash

config/schemas/config.yaml

@@ -1051,6 +1051,20 @@ properties:
         type: string
       tolerations:
         $ref: '#/$defs/tolerations'
+      storagePrefix:
+        type: string
+        examples:
+          - workload-cluster
+      excludedNamespaces:
+        description: Excluded namespaces
+        type: array
+        items:
+          type: string
+      excludedExtraNamespaces:
+        description: Extra excluded namespace, here we should add the namespaces that are more likely to change
+        type: array
+        items:
+          type: string
     type: object
 additionalProperties:
   type: object