message: permission-backend: fixup api-report
diff: ```ts
  import { Config } from '@backstage/config';
  import express from 'express';
  +import { IdentityClient } from '@backstage/plugin-auth-backend';
  import { Logger as Logger_2 } from 'winston';
  import { PermissionPolicy } from '@backstage/plugin-permission-node';
  @@ -20,10 +21,10 @@ export interface RouterOptions {
  // (undocumented)
  config: Config;
  // (undocumented)
  + identity?: IdentityClient;
  + // (undocumented)
  logger: Logger_2;
  // (undocumented)
  policy: PermissionPolicy;
  }
  -
  -// (No @packageDocumentation comment for this package)
  ```
  