message: chore: removing the routeRefs from the migration
diff: ```
  createScaffolderFieldExtension
  ScaffolderFieldExtensions
  - rootRouteRef
  - selectedTemplateRouteRef
  useTemplateSecrets
  scaffolderApiRef
  ScaffolderApi
  NextCustomFieldValidator
  NextFieldExtensionComponentProps
  NextFieldExtensionOptions
  - nextRouteRef
  - nextScaffolderTaskRouteRef
  - nextSelectedTemplateRouteRef
  ```
  