Bump hawk and request in /samples/adobe-auth-node

Removes [hawk](https://github.com/mozilla/hawk). It's no longer used after updating ancestor dependency [request](https://github.com/request/request). These dependencies need to be updated together.


Removes `hawk`

Updates `request` from 2.85.0 to 2.88.2
- [Changelog](https://github.com/request/request/blob/master/CHANGELOG.md)
- [Commits](https://github.com/request/request/commits)

---
updated-dependencies:
- dependency-name: hawk
  dependency-type: indirect
- dependency-name: request
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>