message: Update org.md
  `luxon` dependency is not used
diff: @@ -37,7 +37,6 @@ schedule it:
  ```diff
  // packages/backend/src/plugins/catalog.ts
  -+import { Duration } from 'luxon';
  +import { LdapOrgEntityProvider } from '@backstage/plugin-catalog-backend-module-ldap';
  export default async function createPlugin(
  