FIX(zot): correct accessControl format with repositories wrapper

- Add repositories wrapper around repo configurations
- Fix configuration schema validation error

zot/helm-values.yaml

@@ -119,6 +119,7 @@ configMaps:
               }
             },
             "accessControl": {
+              "repositories": {
                 "**": {
                   "anonymousPolicy": ["read"],
                   "policies": [{
@@ -127,6 +128,7 @@ configMaps:
                   }]
                 }
               }
+            }
           },
           "log": {
             "level": "info"