Set correct path for json file

helmchart/single-sign-on/values.yaml

@@ -152,7 +152,7 @@ kratos:
     config:
       identity:
         # This points to the filename in above identitySchemas section. 
-        default_schema_url: file://identity.default.schema.json
+        default_schema_url: file:///etc/config/identity.default.schema.json
 
       dsn: postgres://kratos:kratos@single-sign-on-postgresql:5432/kratos